High performance reamer
HR 500

The HR 500 DAS high-performance tool has been on the market for 20 years. Manufactured exclusively in Baden-Württemberg, we incorporate a great deal of expertise into the continuous optimisation and addition of this successful concept and guarantee the highest production quality. The result is demonstrated by numerous customer examples: thanks to high feed and cutting speeds at low cutting depths, you can achieve perfect machining results with the HR 500 at maximum cost-effectiveness. In some cases, the HR 500 pays for itself after just 100 holes compared to conventional reamers.

High precision reamer
HR 500

Precision at the highest level

With the high-performance reamers from the HR 500 product family, Gühring offers a wide portfolio range of standard tools for all diameters from 1.95 to 76.00 mm. The HR 500 family also includes tool variants for almost all materials.

Your benefits with the HR 500:

• innovative cutting edge geometry & cooling for controlled chip removal
• high process reliability thanks to high feed rates and cutting speeds
• cost reduction through shortened cycle times, long tool lives & fast stock availability

HR 500 in the online shop

Perfect temperature & chip control

The cooling oil grooves on the shank of the HR 500 ensure targeted and even placement of the coolant on the cutting edges – even at high rotational speeds. Thanks to this innovative design, clogged coolant ducts are a thing of the past. Intensive cooling minimises friction and tool wear, while significantly increasing tool life, surface quality and productivity.

Finish with chip jam

In its through-hole reamer version, the HR 500 has a central coolant exit. Clogged coolant ducts are a thing of the past thanks to this particularly process-reliable cooling. The stepped neck of the tool also guarantees safe chip removal.

Small tolerances pose challenges for users: those who do not want to resort to expensive special tools when manufacturing tight tolerances outside the H7 fit system opt for a reamer from the so-called fixed size. Since the market only offers dimensions in standard 1/100 increments, the tool is only suitable for certain applications to a limited extent.

Gühring is now changing this with its new HR 500 standard range: thanks to new dimensions in precise 5 μ increments, the tool manufacturer is closing the gap in the market and covering all tolerances with a perfect fit. Without any compromises or costly custom-made products.

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 buffer to the lower dimension is only 0.004 μ. The tool wears prematurely, the hole becomes too small.

Ø 11.030: The reamer falls within the required tolerance range of the hole, but exceeds the upper tolerance dimension. There is a risk that the hole will have too large a size.

Ø 11.025 (solution): With the new standard range in the ⁵/₁₀₀₀-field, Gühring covers all tolerance ranges with precision. This results in the article #1675 11.025.

The HR 500 range includes both monolithic and modular reamers. Depending on the application, both systems can be advantageous: our monolithic tools offer particularly high rigidity and low vibration during reaming, resulting in exceptionally high surface quality and accuracy. They have been precisely developed for specific applications. In contrast, our modular tools offer a high degree of flexibility, as different cutting heads, holders and inserts can be combined to meet different requirements. This makes them highly adaptable to different machining situations, materials or machines.

High performance reamer
HR 500 short

The powerhouse for limited installation spaces

The HR 500 short is a real problem solver in applications that only offer limited space for the machining of the workpiece. Thanks to the short projection of the cutting part, the tool ensures maximum stability when machining and guarantees an optimum cutting depth and high hole quality.

Your benefits with the HR 500 short:

• highest cutting performance and high cutting data for minimum cost per hole
• tooling costs savings through reduced material usage
• for universal application in almost all materials

HR 500 short in the online shop

High performance reamer
HR 500 cast iron

Power reamer for machining GG and GGG

With its homogeneous casting quality, the HR 500 cast iron offers completely new possibilities for highly efficient reaming of EN-GJL and EN-GJS materials. The tool achieves its outstanding performance thanks to its geometry and the extremely hard Gühring Signum coating.

Your advantages with the HR 500 cast iron:

• high-performance cooling lubricant guide, optimised for GG and GGG
• optimised chamfers for longer tool lives thanks to increased bearing area with smoothing effect
• material specialist with optimised number of cutting edges for extreme cutting data: V_c > 200 m/min

HR 500 cast iron in the online shop

High performance reamer
HR 500 AL

Process reliable in aluminium processing

When performing machining operations on aluminium, the HR 500 AL is an excellent alternative to expensive PCD tools. This material specialist has a wider support chamfer than the universal solution and ensures maximum performance with its coordinated DLC coating system.

Your benefits with the HR 500 AL:

• can be used for wrought aluminium alloys and aluminium casting alloys
• cutting speeds up to 300 m/min, feed rates up to 25,000 mm/min
• perfect concentricity of shank, neck and cutting part

HR 500 AL in the online shop

High performance reamer
HR 500 T

The solid carbide head solution for Ø 14 to 42 mm

Thanks to its universal HA shank, the HR 500 T can be flexibly combined with standard chucks and numerous extensions. This significant advantage eliminates the need for expensive special holders. This enables cost-effective and very high-quality reaming.

Your advantages with the HR 500 T:

• flexible mounting options thanks to HA shank
• easy extension with shrink fit extension or hydro expansion chuck
• with nanoA-coating for general steel machining

HR 500 T in the online shop

High performance reamer
HR 500 GT

Peak performance over Ø 40.00 mm

Even for diameters over 40.00 mm, Gühring HR 500 technology is the first choice for high-performance reaming. Numerous intelligent solutions ensure maximum cutting data and optimum quality, even with large diameters.

Your advantages with the HR 500 GT:

• intermediate dimensions from Ø 40.0–76.2 mm
• carbide-tipped tools with nanoA-coating for GG machining with the highest requirements for the surface quality
• optimal cooling thanks to deflection screw on end face

HR 500 GT in the online shop