Product details
The COBALT spiral drill bit with a diameter of 8.5 mm from kwb is a high-precision tool specifically designed for machining hard-to-machine materials. With a 5% cobalt alloy, this drill offers exceptional heat resistance and durability, making it ideal for industrial use. The drill is manufactured according to DIN 338 and features a right-hand cutting type N, which allows for efficient and precise machining. The point angle of 135° and the cross grind according to DIN 1412 C provide a self-centering function that enhances accuracy during drilling. The cylindrical shank allows for easy handling and compatibility with standard drills. This spiral drill bit is suitable for a variety of materials, including alloyed and unalloyed steel, stainless steel (Nirosta), gray cast iron, steel castings, bronze, and plastics.
- Cobalt alloyed 5% for increased heat resistance
- Precision ground for high accuracy
- Self-centering cross grind according to DIN 1412 C
- Suitable for hard-to-machine materials
- Industrial quality for professional applications.
Material application | Grey cast iron, Metal, Plastic, Steel |
Length | 22.70 cm |
Drill diameter | 8.5 mm |
Metal type | Steel |
Item number | 6156968 |
Manufacturer | kwb |
Category | Drill bit insert |
Manufacturer no. | 248685 |
Release date | 9.8.2019 |
Colour | Bronze |
Exact colour description | Bronze |
Metal type | Steel |
Material group | Metal |
Material | Cobalt, HSS steel |
Drill Type | Twist Drill |
Material application | Grey cast iron, Metal, Plastic, Steel |
Tool holder | Metal drill |
surface finish | Burnished |
DIN standard | DIN 338 |
Suitable for | Metal, Steel |
Suitable for | Metal, Steel |
borehole size | 8.50 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 | 8.5 mm |
working length | 75 mm |
Length | 22.70 cm |
Width | 0.50 cm |
Height | 0.12 cm |
Weight | 40 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 %