Solid carbide drill
RT 100 InoxPro
Specialist in stainless steel & titanium alloy
Anyone who wants to drill stainless steels and titanium alloys has to contend with high tool wear. Our RT 100 InoxPro solid carbide drill changes that.
The solid carbide drill RT 100 InoxPro achieves an exceptional level of performance thanks to its combination of solid carbide, geometry and coating, which is specially tailored to this material group. You can clearly see the result in your machining practice: this tool enables significantly longer tool lives and reduced machining times.
Drilling in record time
Fast, durable and process-reliable: our innovative high-performance drill solves the problems of INOX-machining in record time.
Solid carbide drills
RT 100 InoxPro
Maximum productivity with drilling in INOX
The RT 100 InoxPro solid carbide drill has been specially designed for the production of precise holes in stainless steels, high-grade steels and titanium materials, promising maximum cutting data and long tool lives.
Your benefits with the RT 100 InoxPro:
- 50% higher feed rate compared to conventional drill bits for stainless steels
- 60 % higher tool lives compared to conventional stainless steel drills
- process-reliable even with deep holes up to 7xD and optimum chip control and removal
The following is an excerpt of common materials that can be optimally machined with the RT 100 InoxPro:
| Machining group | Material no. | Material designation |
|---|---|---|
|
M1.1.1 Stainless steel, ferritic/martensitic, with machining additives M1.1.2 Stainless steel, ferritic/martensitic, annealed, Rm 680 N/mm2, 200 HB M1.1.3 Stainless steel, ferritic/martensitic, heat-treated, Rm 810 N/mm2, 240 HB |
1.4000 | X6Cr13 |
| 1.4034 | X46Cr13 | |
|
M2.1.1 Stainless steel, austenitic, quenched, 180 HB M2.2.1 Duplex steel, high-strength stainless steels |
1.4301 | X5CrNi18-10 |
| 1.4305 | X8CrNiS18-9 | |
| 1.4401 | X5CrNiMo17-12-2 | |
| 1.4410 | X2CrNiMoN25-7-4 | |
| 1.4501 | X2CrNiMoCuWN25-7-4 | |
|
S2.1.1 Titanium alloys, pure titanium, Rm 400 N/mm2 S2.1.2 Titanium alloys, alpha and beta alloys, hardened, Rm 1050 N/mm2 |
3.7025 | Titanium grade 1 |
| 3.7034 | Titanium Grade 2 | |
| 3.7165 | TiAl6V4 |
The features in detail
Smooth surfaces prevent built-up edges
To prevent material from sticking to the drill cutting edges during drilling, Gühring relies on particularly smooth tool surfaces for the twist drill RT 100 InoxPro. Polished flutes and the best surface quality in the web thinning improve the chip removal and minimise built-up edge formation. As a result, we guarantee a very high process reliability in drilling depths up to 7xD. In addition, the tool is coated with Gühring’s own Perrox coating, which is particularly smooth and offers very high wear protection.
New geometry to prevent jamming
Gühring has also specially adapted its carbide substrate for machining INOX materials: an improved combination of hardness and toughness of the cutting material means that the cutting edge does not break out even under high loads. A new drill geometry serves the same purpose: the optimised, crescent-shaped cutting edge and the stronger taper of the tool minimise the tendency to jam in stainless steel.
The premium quality of the cutting edges ensures greater wear resistance and consistency. Initial tests have shown that the wear on this twist drill is up to three times lower than on comparable tools from market competitors. “All this adds up to a precision tool for maximum performance in the INOX field,” explains Markus Kraus, product manager for drilling tools at Gühring.
How is the product portfolio structured?
The RT 100 InoxPro is available as a complete product family of solid carbide in the diameter length ratios 3xD, 5xD and 7xD. The dimensions range from Ø 3 mm to 20 mm. The precision tools are designed with a HA-shank for the holder in hydraulic chucks and shrink chucks.
| Tool illustration |  |
 |
 |
|---|---|---|---|
| Drilling depth |  |
 |
 |
| Shank form | HA | HA | HA |
| Standard | DIN 6537 K | DIN 6537 L | WN |
| Surface | Perrox | Perrox | Perrox |
| Tool material |
solid carbide | solid carbide | solid carbide |
| d1/mm | 3,000 – 20,000 | 3,000 – 20,000 | 3,000 – 20,000 |
| Article no. | 8512 | 8513 | 8514 |
Challenges in INOX machining
INOX materials are popular in many industries, but in machining they exhibit some tricky properties.
Unlike machining conventional steel, stainless steel machining generates very high temperatures, which reduce the life of the tools. In addition, the material tends to jam, which means that it contracts during drilling, causing drill bits to frequently jam and break in the hole. Another property of high-grade steel also contributes to tool wear: the material often sticks to the cutting edges during drilling. If this baked-on material comes loose during the drilling process, parts of the cutting edges can break off.
For all these reasons, a material specialist should definitely be used for drilling in INOX materials. However, the performance of conventional INOX drills is rarely at the highest level. Gühring is closing this gap with a special tool made of solid carbide, which has been presented for the first time at EMO 2023: the RT 100 InoxPro twist drill. The solid carbide drill was specially designed for the production of precise holes in stainless steels, high-grade steels and titanium materials and promises the highest cutting data and long tool lives.
The RT 100 InoxPro in the use
25 per cent time saving
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More InformationThe fact that significantly higher feed rates are possible in INOX materials with the RT 100 InoxPro is shown by a practical example in which the Gühring drill was tested against the high-performance INOX drill of a competitor. The result: thanks to the higher feed rate, the machining time per component was 25 per cent shorter than with the competitor’s drill and with the same tool life.
Application data for the RT 100 InoxPro video
Prerequisites
Component: Perforated plate
Material: X46Cr13 (1.4034)
Hole: Full bore – through hole
Cooling: Internal cooling (emulsion with 60 bar)
| RT 100 InoxPro | Competition tool | |
|---|---|---|
| Cutting speed Vc | 100 m/min | 90 m/min |
| Feed f | 0.09 mm/rev | 0.08 mm/rev |
| Cycle time/part | 45 min | 60 min |
NewsroomExperience our material specialist
Higher tool lives and reduced processing times – that’s what makes our material specialist shine. See for yourself and experience the RT 100 InoxPro in the video.
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More Information
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