The "HR 500" series of ultra-high-speed reamers for blind holes, developed by the No. 1 manufacturer in Germany with over 125 years of history, features an internal cooling design.
One of Gühring's bestsellers, the 'HR 500 S' solid carbide reamer for blind holes features an unmatched ultra-high-speed and high-performance capability with internal lubrication (with oil holes). It enables high-quality hole finishing at ultra-high speeds. Significant improvements in production efficiency due to reduced processing time. It has a wide range of applicability for work materials, balancing high performance with high reliability. The center-through internal lubrication ensures reliable chip removal in blind holes.
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basic information
■Material: Super hard ■Diameter: Φ1.970 to Φ20.030 ■Oil hole: Yes (Center through internal lubrication) ■Surface treatment: nanoA coating ■Shank tolerance: h6 ☆★About Gühring★☆ Since its founding in 1898, Gühring has held the top market share in cutting tools in Germany. It has over 40 years of sales experience in Japan and possesses a rare domestic manufacturing facility among foreign manufacturers, offering custom product manufacturing as well as regrinding and recoating services.
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For more details, please refer to the product catalog or feel free to contact us.
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Applications/Examples of results
- P: ◎ - M: ◎ - K: ○ - N: - S: ◎ - H: ○ *For more details, please refer to the cutting conditions table in the product catalog or feel free to contact us.
Detailed information
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Material: Super hard
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Surface treatment: nanoA coating
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Oil hole: Present (internal lubrication)
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Shank tolerance: h6
Line up（2）
| Model number | overview |
|---|---|
| 1675 | [Blade diameter tolerance +0.005][Internal lubrication][Coating] |
| 1685 | [H7 tolerance hole][Internal lubrication][Coating] |
catalog（5）
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Company information
In 1898, the founder Gottlieb Gühring began the production of cutting tools in Germany based on the belief that "the highest quality conquers the world." In the early days, the number of products was small, and the catalog consisted of only a few pages, but now we have a standard product lineup that exceeds 4,500 types and 100,000 items. "We will not allow others to catch up with us in terms of product quantity and precision" – this belief will continue to be the foundation of our company as we strive to improve. "From standard products to special items, from spindles to cutting edges" – we sincerely wish to be a strong partner for our customers by not only developing and manufacturing cutting tools but also earnestly addressing any challenges related to cutting technology.