kwb COBALT Twist Drill 4.0 mm
4 mmOnly 2 pieces in stock at supplier
Product details
The Cobalt spiral drill bit with a diameter of 4.0 mm from kwb is a high-precision metal drill designed specifically for machining various metals, including alloyed and unalloyed steel. This drill is characterized by its cobalt alloy, which provides increased heat resistance and durability, making it ideal for demanding applications. The drill features a 135° point angle and a cross-ground tip according to DIN 1412 C, ensuring a self-centering function and enhancing drilling efficiency. The cylindrical shank allows for easy handling and compatibility with standard drilling machines. With its precision-ground surface and industrial quality, this spiral drill bit is a reliable choice for professional users and hobbyists who value quality and performance.
- Cobalt alloyed 5% for increased heat resistance
- Precision-ground for optimal drilling performance
- 135° point angle with cross-ground tip for self-centering drilling
- Suitable for difficult-to-machine materials such as stainless steel and gray cast iron
- Cylindrical shank for easy handling and compatibility with standard drill machines.
Material application | Grey cast iron, Metal, Plastic, Steel |
Length | 22.70 cm |
Drill diameter | 4 mm |
Metal type | Cobalt |
Item number | 6156952 |
Manufacturer | kwb |
Category | Drill bit insert |
Manufacturer no. | 248640 |
Release date | 17.10.2022 |
Colour | Bronze |
Exact colour description | Bronze |
Metal type | Cobalt |
Material group | Metal |
Material | Cobalt Alloy High-Speed Steel (HSS-Co) |
Drill Type | Twist Drill |
Material application | Grey cast iron, Metal, Plastic, Steel |
Tool holder | Metal drill |
surface finish | Burnished |
DIN standard | 338 |
Suitable for | Metal, Steel |
Suitable for | Metal, Steel |
borehole size | 4 mm |
Point angle | 135° |
Point angle | 135° |
Country of origin | Germany |
CO₂-Emission | |
Climate contribution |
Scope of delivery | 1 piece |
Items per sales unit | 1 x |
Drill diameter | 4 mm |
working length | 43 mm |
Length | 22.70 cm |
Width | 0.50 cm |
Height | 0.05 cm |
Weight | 20 g |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Drill bit insert» category have a defect within the first 24 months?
Source: Digitec Galaxus- 1.Futuro BRW0 %
- 1.KS Tools0 %
- 1.kwb0 %
- 1.Neriox0 %
- 1.Ruko0 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- kwbNot enough data
- 1.Bosch Professional Zubehör0 days
- 2.DeWalt7 days
- AlpenNot enough data
- BGSNot enough data
Return rate
How often is a product of this brand in the «Drill bit insert» category returned?
Source: Digitec Galaxus- 18.Bosch Zubehör0.6 %
- 20.Bosch Home & Garden0.7 %
- 20.kwb0.7 %
- 22.Famag0.9 %
- 23.DeWalt1.2 %