New standard
This reamer is a perfect fit for every diameter range
When it comes to demand for high-quality surfaces, excellent hole qualities and tight diameter tolerances, the HR 500 high-performance reamer has been raising the bar for years. Gühring is now creating the next sensation by expanding the product’s diameter range by +-0.05 mm increments. The result: With the new fixed-size reamers in 5µ increments, Gühring covers all tolerance ranges with a precision-fit.
If you’d like to avoid using an expensive special tool for producing tight tolerances outside the H7 fit system, then opt for a reamer from one of our fixed sizes. Conventional models only offer dimensions in 1/100 increments and ± 0.03 mm in their range. The result? The reamers are only suitable to a limited extent.
1 = market standard, 2 = special tool, 3 = Gühring Tool, 4 = wanted ⌀
This is now set to change with Gühring: Thanks to new fixed-size reamers from ± 0.05 mm and dimensions in 5μ increments, Gühring is closing the gap in the market and covering numerous tolerances even outside the H7 class. And it does this with a great deal of precision as standard – without making any compromises or using custom-made products. As a result, customers benefit from over 100% more wear buffer and double the tool lives in selected fits when they purchase one of these high-performance reamers.
Example of fit
Perfectly within tolerance
The new intermediate dimensions for the HR 500 high-performance reamer in 5μ increments cover all tolerance ranges with high precision – for 125% more reaming performance. Using the example of tolerance 11 F7, we will now demonstrate what this means for your tool selection:
A = hole tolerance, B = recommended tolerance
Example tolerance 11 F7
Ø 11,010: The reamer does not fall within the required tolerance range of the hole. The hole is too small.
Ø 11,020: The reamer falls within the required tolerance range of the hole. However, the wear buffer for the lower tolerance variable is only 0.004 µ. The tool wears prematurely, the hole is too small.
Ø 11,030: The reamer falls within the required tolerance range of the hole, but exceeds the upper tolerance variable. Risk of the hole being too large.
Ø 11,025 (SOLUTION): With the new standard programme in the 5/1000 range, Gühring covers all tolerance ranges with a precise fit. This results in article #1675 11.025
HR 500
Maximum precision
The HR 500 high-performance tool has been on the market for 20 years and no other conventional machine or NC reamer has come close to reaching its level of performance. Made exclusively in Baden-Württemberg, this successful product incorporates a great deal of expertise as we work hard to continuously optimise and enhance its concept and guarantee the highest production quality.
The product’s high performance is based on a combination of cutting edge geometry, the use of a special carbide and the coating. The universal use of these reamers allows them to be used in a wide range of materials, guaranteeing you maximum flexibility in your projects. The HR 500 family also includes tool variants for almost all materials.
How you benefit from the new fixed-size reamers:
- precise reamers without compromises or expensive custom-made products
- 100% more wear buffer and longer tool lives thanks to finer increments
- programme covers numerous tolerances even outside the H7 range
- universally applicable in a wide range of materials
A number of testimonials from our customers are proof of this result: Thanks to high feed and cutting speeds at low cutting depths, the HR 500 achieves perfect machining results with maximum economic efficiency. In some cases, your investment in an HR 500 will be paid off after just 100 holes compared to conventional reamers.
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