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For drilling in sheet materials up to 3mm thick. Diameter from 4 mm to 20 mm. High-speed cobalt steel M35. Wear-resistant coating with titanium nitride. Spiral groove. Cobalt 5%.
Step drill made of high-speed tool steel HSS-Co M35 according to DIN 338 (domestic marking of steel - Р6М5К5). Spiral flute for chip ejection.
Corresponds to GOST 10902-77.
The high content of cobalt Co in the alloy (about 5%) significantly increases the performance and durability of the drill, even compared to a titanium surface coating. Doping with cobalt also increases red hardness (the ability to withstand overheating without deterioration).
Additional hardening coating with titanium nitride.
The step drill is intended for drilling of sheet steel, non-ferrous metals, plastic.
Made of tool steel, the drill is coated with titanium nitride (yellow coating) to increase the resource.
The shank of the drill is hexagonal 1/4" (6.35 mm), corresponds to the installation size of the bit holder of the screwdriver.
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
To carry out technical calculations and obtain the exact parameters of the goods, use the datasheets from the manufacturer's website.
If you need additional information, or you found an error in the description, or have other questions about this product, then our manager will help you: Ярослав
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![Cobalt spiral Step drill 4-20mm [pitch 2mm] grade M35](/files/pic/sverlo/044357/0443572-1-s.jpg)
![Cobalt spiral Step drill 4-20mm [pitch 2mm] grade M35](/files/pic/sverlo/044357/0443572-1-b.jpg)
![Cobalt spiral Step drill 4-20mm [pitch 2mm] grade M35](/files/pic/sverlo/044357/044357-1-b.jpg)
![Cobalt spiral Step drill 4-20mm [pitch 2mm] grade M35](/files/pic/sverlo/044357/044357-2-b.jpg)
The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
