Yamawa Manufacturing Co.,Ltd. List of Products and Services

A lineup of taps for parallel pipe threads and tapered pipe threads. Taps for parallel pipe threads (PF・G) are cutting taps used for threading when the main purpose is to achieve mechanical connections between pipes and pipe fittings. Taps for tapered pipe threads (PT・Rc) and taps for parallel pipe threads (PS・Rp) are cutting taps used for threading in applications requiring leak resistance, such as water pipes and gas pipes. *For more details, please refer to the PDF materials or feel free to contact us.

• Tap
• Other cutting tools

The "Plus Series" includes two types of cutting taps: "＋SP," which is designed for blind holes, and "＋PO," which is designed for through holes, based on the shape of the holes being processed. 【Features】 ＜＋SP＞ ■ A cutting tap for blind holes designed with a screw section suitable for medium-speed machining centers. ■ More effective when used in synchronized feed machining. ■ Dimension range is standard sizes from M2 to M6. *For more details, please refer to the PDF document or feel free to contact us.

• Tap
• Other cutting tools

The "Standard Tap Series" offers three types of shapes. To meet a wide range of demands, we have a comprehensive dimensional range that includes not only metric threads but also Unified threads and Whitworth threads. 【Lineup】 ■ HT (Hand Tap) ■ SP (Spiral Tap) ■ PO (Point Tap) *For more details, please refer to the PDF materials or feel free to contact us.

• Tap
• Other cutting tools

The "super hard tap" is a tap that is resistant to breakage even during continuous cutting processes. It uses high-toughness ultra-fine particle carbide, which excels in wear resistance. It is suitable for cutting processes of mass-produced items and continuous processing products, and it is durable and resistant to breakage. 【Features】 ■ Resistant to breakage even during continuous cutting processes ■ Uses high-toughness ultra-fine particle carbide ■ Excellent wear resistance ■ Well-suited for cutting processes of mass-produced items and continuous processing products *For more details, please refer to the PDF document or feel free to contact us.

• Tap
• Other cutting tools

The "roll tap" is a tap that forms threaded holes without cutting edges and without producing chips. It is suitable for forming blind holes in relatively soft work materials. The strength of the processed internal threads is high, and there is little variation in the effective diameter. 【Features】 ■ Creates threaded holes through plastic deformation without producing chips ■ Well-suited for forming blind holes in relatively soft work materials ■ Equipped with grooves to improve the supply of cutting oil ■ The strength of the processed internal threads is high, and there is little variation in the effective diameter *For more details, please refer to the PDF document or feel free to contact us.

• Tap
• Other cutting tools

The "Spiral High Die SP-D" features twisted chip holes, providing high chip discharge performance. It discharges chips to the rear of the die, reducing troubles. 【Features】 ■ Twisted chip holes ■ High chip discharge performance ■ Discharges chips to the rear of the die, minimizing chip-related issues *For more details, please refer to the PDF document or feel free to contact us.

• Dice
• Other cutting tools

The "Point High Slide PO-D" is a die with a twisted cutting section, which has high chip discharge performance. It discharges chips to the front of the die, reducing troubles. 【Features】 ■ Twisted cutting section ■ High chip discharge performance ■ Discharges chips to the front of the die, reducing chip-related troubles *For more details, please refer to the PDF document or feel free to contact us.

• Dice
• Other cutting tools

This product is a die for processing tapered and parallel threads used in pipes and pipe fittings. It offers high precision and stable processing. Being a solid die, it requires no adjustments and is easy to set up. 【Features】 - Processes tapered and parallel threads used in pipes and pipe fittings - Allows for stable processing - No adjustments needed - Easy setup *For more details, please refer to the PDF document or feel free to contact us.

• Dice
• Other cutting tools

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We have received an order for a "special drill" to be used in surgery from an orthopedic hospital. We are considering domestic procurement and learned through the web that "YAMAWA" manufactures medical surgical instruments. How should we place an order? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry "We are going to manufacture two types of bicycle parts with screws '5V2' and 'CTV5-36'. What is the difference between these similar markings? Also, are there taps available for processing?" *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry I would like to perform the internal thread processing indicated as "MJ8×1" on the machining drawing using a tap, but what is "MJ thread"? Is it not possible to process it with the tap for "M8×1" which is normally used for "metric threads"? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries received from customers. This document also includes detailed explanations. 【Contents】 ■Inquiry We have received a request for a manufacturing estimate for a part with a male thread called "5V1." However, I do not understand what kind of thread "5V1" is. Do you have taps that can process it? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We received a request for a quote for a part that has a threaded processing indicated as "20.32W36" on the drawing. I heard from the client that this is a part for "optical equipment," but what kind of standard is this thread? I am unsure what tools to use for processing and am in trouble. *For more details, please refer to the PDF document at the link below.

• Tap

This document introduces "roll taps." It includes recommended features and points to consider for those thinking about switching from cutting taps to roll taps. Please make use of it for your introduction. [Contents] ■ Consultation ■ Answers ■ Main features of roll taps (comparison with cutting taps) ■ Main points to consider when using cutting taps *For more details, please refer to the PDF document at the link below.

• Tap

This document introduces "pipe taps." When machining Rc (PT) male threads with a pipe tapered tap, it discusses why "making the pilot hole tapered makes tapping slightly easier" and "issues that arise when the pilot hole is tapered." 【Contents】 ■ Consultation ■ Response ■ Explanation 1 - Pilot hole shape: When straight - Pilot hole shape: When tapered ■ Explanation 2 *For more details, please refer to the PDF document at the link below.

• Tap

This document introduces consultations and responses related to "cutting taps." It includes practical examples and lifespan cases of carbide taps "N-CT FC," as well as a comparison of the number of threads and wear amounts of the engaged parts between carbide taps and HSS taps. Please make use of this document. 【Included Cases】 ■Consultation ■Response ■Explanation 　・Comparison of the number of threads and wear amounts of the engaged parts between carbide taps and HSS taps 　・Carbide tap: Practical examples and lifespan cases of N-CT FC *For more details, please refer to the PDF document at the link below.

• Tap

This document introduces consultations and responses related to "cutting taps." It includes information on ultra-high-speed machining capable carbide taps "HFICT-P" and "HFICT-B," as well as the dimensional specifications of carbide hand taps for ultra-high-speed cast iron applications. Please make use of this document. 【Included Examples】 ■Consultation ■Response ■Explanation 　・Carbide hand taps "HFICT-P," "HFICT-B" 　・Dimensional specifications of carbide hand taps for ultra-high-speed cast iron applications *For more details, please refer to the PDF document linked below.

• Tap

This document introduces consultations and responses related to "cutting taps." It includes the short chamfer hand tap "MG-HT" for magnesium alloy castings, as well as one-point advice on magnesium alloys. Please make use of this document. 【Published Examples】 ■Consultation ■Response ■Explanation 　・Short chamfer hand tap "MG-HT" for magnesium alloy castings 　・One-point advice *For more details, please refer to the PDF document at the link below.

• Tap

This document introduces consultations and responses related to "cutting taps." It includes recommended grades for taps that can process 3B class internal threads, as well as the tolerance range for 3B class internal threads and the recommended GH class tolerance range for taps. Please make use of this document. 【Included Examples】 ■Consultation ■Response ■Explanation: Tolerance range for 3B class internal threads and recommended GH class tolerance range for taps ■Document: Recommended grades for ANSI standard unified internal thread 3B class processing taps (excerpt) *For more details, please refer to the PDF document at the link below.

• Tap

This document contains measures regarding the "stop gauge failure (enlarged internal thread) trouble." In tapping operations using holders with tension/compression on a machining center, "stop gauge failure (enlarged internal thread) trouble" may occur, but visual inspection does not reveal any chipping or welding on the tap. The cause of the trouble is believed to be due to the tap's feed being either too fast or too slow. This phenomenon is explained with diagrams and countermeasures are provided. [Contents] ■ Consultation and answers regarding stop gauge failure (enlarged internal thread) trouble ■ Explanation and countermeasures for the phenomenon of the tap's feed being too fast or too slow *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to the inquiries received from customers. This document also includes detailed explanations. 【Contents】 ■Inquiry I am processing a spiral tap M12X1.75 at the recommended cutting speed of 7m/min. What should the feed rate for the spindle be set to on the machine? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to the inquiries received from customers. This document also includes some minor speculations. 【Contents】 ■Inquiry I know how to express unified screws like "1/4-20UNC" and "1/2-13UNC" in inches. For the "1/4-20UNC" external thread, I understand that the outer diameter reference dimension is 1/4 of 1 inch (25.4mm), which is "6.35mm." However, the outer diameter reference dimension for the pipe thread "G1/4-19" (old standard: PF1/4-19) is 13.157mm, which does not match at all. How should I understand this? *For more details, please refer to the PDF document at the link below.

• nut

YAMAWA will respond to the inquiries received from customers. This document includes detailed explanations. 【Contents】 ■Inquiry In an old drawing, the part for the internal thread is labeled "TM10X2." I understand that it is a "30° trapezoidal thread," but I was told by the retailer that the TM tap is no longer available on the market, and that the tap for the 30° trapezoidal thread would be Tr 10X2. Is it okay to process with this tap? Also, what diameter should the pilot hole be? *For more details, please refer to the PDF document linked below.

• nut

YAMAWA will respond to the inquiries received from customers. This document also includes detailed advice. 【Contents】 ■Inquiry Using a pipe taper tap: I am tapping with PT1/2-14 on a radial drill, but I am not sure how far I need to insert the tap to achieve a tapered thread that meets the standards. What are the reference dimensions for this? *For more details, please refer to the PDF document at the link below.

• nut

YAMAWA will respond to the inquiries received from customers. This document also includes detailed advice. 【Contents】 ■Inquiry We are processing PT 1/4-19 manually, but unlike machine processing, we cannot set the tap insertion length using a scale. Is there an easy way for anyone to understand how far the tap should be inserted into the workpiece? *For more details, please refer to the PDF document linked below.

• Tap

YAMAWA will respond to inquiries from customers. This document also includes detailed explanations. 【Contents】 ■Inquiry There are various symbols for pipe threads, such as R, Rc, Rp, G, PT, PS, and PF, but is there any rule regarding the combination of "female threads" and "male threads"? It is quite confusing and very troublesome. *For more details, please refer to the PDF document at the link below.

• nut

YAMAWA will respond to the inquiries received from customers. This document also includes a comparison table of the effective diameter tolerance ranges for pipe threads. 【Contents】 ■Inquiry There are various types of "pipe threads" such as G, PF, R, Rc, and PT, but is there any material that clearly shows their relationships at a glance? I hear explanations that they are the same standard with just different symbols, but I don't understand. Additionally, I cannot grasp the differences between the current JIS standards and the old JIS standards. *For more details, please refer to the PDF document linked below.

• nut

YAMAWA will respond to inquiries received from customers. This document also includes detailed explanations. [Contents] ■Inquiry Symbols such as "L" and "ℓ" are listed in catalogs and tap drawings; could you please explain their meanings? *For more details, please refer to the PDF document linked below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry In the tap catalog, it states "M 8 X 1.25" in the "call" section. Could you please briefly explain what this refers to? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to the inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We received an order for the processing of the "external thread" of a camera tripod mounting part. The dimensions are "1/4-20". Previously, when we processed the "internal thread" of the camera tripod mounting part, we used a tap for tripod mounting screws. Is a special die also necessary for processing the external thread? *For more details, please refer to the PDF document at the link below.

• Dice

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry I have taken on a job to process male threads of "NPT3/8" for exports to the United States. I have a "PT3/8" tap that I always use on hand; can it be used as a substitute? *For more details, please refer to the PDF document linked below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry A customer has requested to perform tapping for "M8 reverse thread." Do you have a tap for reverse threads? I don't quite understand what kind of tap it is, so please let me know. *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry In the tap catalog, it states "1/4-20UNC" in the "Call" section, but could you please briefly explain what "1/4" and "20" refer to? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We plan to process the pipe taper male thread "PT 3/8-19" using YAMAWA's solid die for pipe taper threads "D PT." How far should the die be inserted to achieve good male thread dimensions? *For more details, please refer to the PDF document at the link below.

• Dice

YAMAWA will respond to the inquiries received from customers. This document also includes detailed explanations. 【Contents】 ■Inquiry What kind of cutting tool is a center hole drill used for? In processing sites, it is used for positioning and chamfering, but what is its original intended use? *For more details, please refer to the PDF document linked below.

• Other cutting tools

YAMAWA will respond to inquiries received from customers. This document also includes detailed explanations. 【Contents】 ■Inquiry We are performing roll tapping on SS400 material with M6X1. We understand that the inner diameter of the processed blind hole varies in its bulging depending on the material and processing shape, so the pilot hole diameter is just a guideline. Please let us know if there is a good method to find the appropriate pilot hole diameter. *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We received an order for a work drawing that specifies a screw labeled "CTG22-14." What kind of screw is this? Also, please tell me about the screw standards. *For more details, please refer to the PDF document linked below.

• nut

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We received a request for a quote for the screw machining indicated as "CTC25-16" on the drawing. What kind of screw is this, and what are the specifications? *For more details, please refer to the PDF document linked below.

• nut

YAMAWA will respond to the inquiries received from our customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We have been performing tapping on a small amount of cast iron (FC250) material, but we have received a continuous order for a large volume of tapping work. The screw size is an M8×1.25 through hole of 15mm. We have been processing with the HT P3 M8X1.25 medium tap that we have used for cast iron in the past, but the through gauge (GP-6H) is becoming unusable quickly, and we are struggling with the frequent need to replace taps. Is there a recommended good tap? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We are processing pipe taper taps Rc (PT) on a machining center, but we are having trouble with the internal threads being stripped. Is there any way to improve this? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry In the machining drawing, it says "screw" with terms like 1/4UNC and 1/4UFC. What do they mean? *For more details, please refer to the PDF document at the link below.

• Other cutting tools

YAMAWA will respond to inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We are planning to undertake work on aircraft components, specifically tapping UNJ threads of 1/4-28UNJF and 5/16-24UNJF. I understand that by using taps for Unified threads, 1/4-28UNF and 5/16-24UNF, which can process 3B class threads, and adjusting the pilot hole diameter to the specified inner diameter dimensions, we can process UNJF threads. However, what is the recommended grade for taps that can process 3B class threads? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to the inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We are processing a tapered pipe thread Rc (PT) 1/4-19 with a screw length of 8.7mm using a carbide helical cutter: 080153X19R. At that time, we received advice that it would be better to make the pilot hole tapered rather than straight. How should we process the pilot hole to be tapered? *For more details, please refer to the PDF document at the link below.

• Tap

YAMAWA will respond to the inquiries received from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry We are performing "tapping" for metric screws and unified screws. As a method to inspect the internal threads, we insert commercially available bolts to check the degree of "play" on the processing site and make a judgment on their quality. This time, we received a request from a customer to be cautious, as there are some screws with significant play and some that are too tight. We understand that it would be good to inspect with the screw gauges "GP-6H" and "NP-6H," but it is difficult to prepare all types of screw gauges due to cost constraints. Is there a good solution? *For more details, please refer to the PDF document linked below.

• Tap

YAMAWA will respond to inquiries from customers. This document includes detailed explanations as well. 【Contents】 ■Inquiry I am using a pipe taper tap SP-PT on a machining center, but occasionally the threads are getting damaged, which is a problem. Is there any way to improve this? *For more details, please refer to the PDF document linked below.

• Tap