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

This document is a technical material published by Miman Manufacturing Co., Ltd. Since our establishment, we have continuously adopted and researched suitable high-quality materials. It explains the current standard materials in use, as well as trends in tool materials. [Contents] ■ Materials Used ■ Trends in Tool Materials ■ JIS Chemical Components *For more details, please refer to the PDF document or feel free to contact us.

This document is a technical material published by Miman Manufacturing Co., Ltd. It explains the feeding mechanism and features of the machine, as well as the tendencies of the tap's self-guiding properties. [Contents] ■ Feeding mechanism and features of the machine ■ Features of the holder ■ Tendencies of the tap's self-guiding properties *For more details, please refer to the PDF document or feel free to contact us.

Various types of cutting edges can now be attached according to processing applications. By adopting special screws, fastening strength has been enhanced. The introduction of a conical surface has achieved high runout accuracy. Furthermore, by strengthening the fastening, high rigidity has been secured. 【Features】 ■ Various types of cutting edges can be attached according to processing applications ■ Fastening strength enhanced by the adoption of special screws ■ Achieved high runout accuracy ■ Secured high rigidity *For more details, please refer to the PDF document or feel free to contact us.

The "Center Hole Drill" harmonizes the flow of chips from the cutting part and the counterbore part. It is designed with a groove shape that can sufficiently accommodate and eliminate these chips. Considering the strength of the drill, the length of the cutting part is kept to a necessary minimum, and to compensate for the weak point in strength at the junction of the cutting part and the counterbore part, there is an R at the junction within the back taper of the cutting part. There is also a rich lineup available. 【Features】 ■ Double-edged design with a spiral groove ■ Excellent chip removal, with less damage due to clogging ■ The length of the cutting part is kept to a necessary minimum ■ There is an R at the junction within the back taper of the cutting part ■ A rich lineup is available *For more details, please refer to the PDF document or feel free to contact us.

The "AUPEQ/AUPES" is a coating single-flute point drill that achieves good surface roughness through excellent cutting performance due to its strong torsion design and improved accuracy from its single-flute shape. Using the point drill eliminates drill breakage issues that can occur with center hole drills. Additionally, it allows for simultaneous complex processing of positioning and chamfering, and can be used for various other machining tasks. 【Features】 ■ High-speed cutting processing is possible due to a rigid design ■ Eliminates drill breakage issues with center hole drills ■ Allows for simultaneous complex processing of positioning and chamfering, and can be used for various other machining tasks ■ High machining accuracy is achieved due to good engagement from the two-step flat shape ■ Increased freedom of extension allows for smooth chip removal *For more details, please refer to the PDF document or feel free to contact us.

The "AUCES/AUCDS" is a coating single-flute center drill that adopts a single-flute shape to achieve high precision in tools. Due to the single-flute shape, the tool set into the holder remains consistent, resulting in stable protrusion. 【Features】 ■ High-quality center holes are achieved through coating and single-flute shape ■ The single-flute shape ensures a consistent tool set into the holder, stabilizing the protrusion ■ Improved cutting edge and shank precision ■ Marking position is at the rear of the shank ■ The cutting length (L) is shorter than conventional products, allowing for high-speed and high-feed machining *For more details, please refer to the PDF document or feel free to contact us.

The "MHCDS" is a center hole drill for high-speed machining of medium-hard carbon steel, designed for high-precision center hole processing. Taking into account the gap between the receiving center tip and the bottom of the center hole, the length (L) is minimized to enhance rigidity. To improve concentricity, the tip is designed in a "three-rake X-shining" shape, enabling high-speed and high-feed machining. 【Features】 ■ Center hole drill for high-precision center hole processing ■ Single-blade design to improve position accuracy and precision of the shank ■ Minimizes drill length to enhance rigidity (considering the gap between the receiving center tip and the bottom of the center hole) ■ Tip designed in a "three-rake X-shining" shape for high-speed and high-feed machining *For more details, please refer to the PDF document or feel free to contact us.

The "PE Series" is a point drill that enables high-speed cutting due to its highly rigid design. The strong twist design provides excellent cutting performance, improving surface roughness. It allows for simultaneous complex processing of positioning and chamfering, and can also be used multifunctionally for tasks such as groove processing. 【Features】 ■ High-speed cutting is possible due to the highly rigid design ■ Excellent cutting performance from the strong twist design improves surface roughness ■ Issues with drill bit breakage in center hole drills are resolved ■ Simultaneous complex processing of positioning and chamfering is possible, and it can also be used multifunctionally for tasks such as groove processing *For more details, please refer to the PDF document or feel free to contact us.

The "NC-SD/NC-SD-V" is a dedicated centering tool for positioning holes, available in two types: "NC-SD (125°)" for positioning and "NC-SD-V (90°)" for chamfering, allowing selection based on application. Its high rigidity design enables stable and high-precision positioning. It demonstrates effectiveness in positioning difficult curved surfaces and gentle slopes due to its excellent engagement. Additionally, it uses cobalt-based high-speed steel, which excels in wear resistance. It provides a good cup-shaped finish even on soft materials like mild steel and aluminum. 【Features】 ■ NC-SD - A positioning drill specifically used before drilling operations - Allows for high-precision positioning without chipping the drill edge ■ NS-SD-V - Capable of creating a clean chamfer on finished surfaces *For more details, please refer to the PDF document or feel free to contact us.

The original purpose of the "Center Drill" is to be a drill specifically for center hole processing, but it has also been widely used for other applications such as chamfering, positioning, and drilling holes in thin plates. As a result, there has been a tendency to sacrifice some of its original processing performance in order to meet the demands of various hole processing capabilities. However, in developing the new ISO standard center drills, our company has returned to its roots and pursued the original processing performance. 【Product Lineup】 ■ Type A 60° CESA ■ Type A 90° CEQA ■ Type B 60° CESB ■ Type R CEIR *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce the "Center Hole Drills/Centers" handled by Miman Manufacturing Co., Ltd. Starting with the strong twist groove JIS A type center hole drill "CESA," we also offer the strong twist groove A type center hole drill "CE-S," which is particularly suitable for soft materials and relatively sticky materials, as well as the weak twist groove A type center hole drill "CD-S," which is suitable for relatively hard materials. We have a wide variety available, so please make use of them according to your needs. 【Lineup (excerpt)】 ■CESA ■CE-S ■CE-S (I) ■CD-S ■CD-S (I) ■CD-S LH *For more details, please refer to the PDF document or feel free to contact us.

The "MH Series" demonstrates outstanding performance in the processing of internal threads and center holes for parts that require both strength and toughness, making it suitable for machining medium-hard carbon steel. The "MHSP" is a stop hole spiral tap for medium-hard carbon steel, adopting the DIN full length. It ensures an appropriate protrusion amount and alleviates interference between the holder and chips. In addition, we also offer the "MHSL," a through hole spiral tap for medium-hard carbon steel, and the "MHRZ," a roll tap for medium-hard carbon steel. 【Features】 ■ Ideal for machining medium-hard carbon steel ■ Outstanding performance in the processing of internal threads and center holes for parts ■ Achieves reliable machining and stable performance at a high level *For more details, please refer to the PDF document or feel free to contact us.

On our website, we introduce taps, center hole drills, dies, and more through videos. We hope you find them helpful for your processing needs. Please take a look at the related links below. *For more details, please refer to the related links or feel free to contact us.*

The "CH-T" is a tap cutting tool grinding device that can grind the engaged part of taps with a center hole. It can be mounted on a general-purpose tool grinding machine or a general-purpose cylindrical grinding machine, and its lightweight design allows for easy attachment and detachment. Using this device makes it relatively easy and accurate to perform work. 【Features】 ■ Restores cutting ability, extends lifespan, and reduces costs ■ Can grind the engaged part of taps with a center hole ■ In cases of damage to the engaged part (wear, welding, chipping), re-grinding the relief surface from the rake face is effective ■ Can be mounted on a general-purpose tool grinding machine or a general-purpose cylindrical grinding machine ■ Lightweight design allows for easy attachment and detachment *For more details, please refer to the PDF document or feel free to contact us.