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Description
Technical data for the drill bit for metal, Ø36 mm, with reduced shank
| Technical data | |
|---|---|
| Working diameter of drill d | Ø36 mm |
| Overall length l1 | 152 mm |
| Flute length l2 | 65 mm |
| Shank diameter - 1.2" | 12.7 mm |
- 1/2 inch reduced shank – mounting without adapters
- Drilling in steels up to 35 HRC
- High-quality HSS steel
- IT11 tolerance (±130 µm)
- Ground surface – low roughness
Cutting data for the Ø36 mm HSS NWKa drill bit
| Material | Cutting speed Vc [m/min] | Feed per revolution f [mm] | Spindle speed n [rpm] | Total feed rate [mm/min] |
|---|---|---|---|---|
| PSteel | 14-25 | 0.25 | 124 | 62 |
| KCast iron | 10-18 | 0.25 | 88 | 44 |
May be useful
Cutting parameters calculator
Ø36 mm reduced-shank HSS metal drill bit – a precision tool for industry
Specialized a 36 mm diameter drill bit with a reduced shank made of high-speed steel (HSS) is a tool designed for the most demanding machining processes. The 12.7 mm (half-inch) shank allows quick mounting in standard industrial holders without adapters. The tool is intended for heavy industry plants, toolrooms, and shops producing steel components.
Distinctive features of the 36 mm diameter Varel drill bit
- 1/2 inch reduced shank – mounting without adapters
- Drilling in steels up to 35 HRC
- High-quality HSS steel
- IT11 tolerance (±130 µm)
- Ground surface – low roughness
Reduced-shank technology eliminates the limitations associated with mounting large tools in standard machines. The polished finish effectively reduces friction and heat buildup, maintaining high productivity during extended operation in industrial production and emergency repairs.
Frequently asked questions
The Ø36 mm HSS drill bit performs well in S235 and S355 structural steels with a maximum hardness of 35 HRC, as well as in cast iron, aluminum, and brass. We advise against use in heat-treated steels with a hardness exceeding 35 HRC and in high-chromium stainless steel grades.
Tools with diameters above 35 mm generate extreme amounts of heat during cutting. Using suitable coolants is a key factor in extending drill bit life by up to 60 percent and ensuring optimal quality of the holes produced.
For S235 materials, a speed of 130-195 rpm is suitable, while S355 steel requires 85-145 rpm. Exceeding these values leads to excessive tool heat buildup and rapid loss of its cutting properties.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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