Product description
- Step drill bit HSS-AlTiN 4-20, 70.5 mm
- Smooth drilling of various diameters with one drill bit
- HSS step drill bit can drill smooth holes of various diameters with one drill bit
- Pre-punching is unnecessary as the split tip enables easy drilling
Advantages
- Drilling various diameters - The HSS step drill bit can make smooth, burr-free holes of various diameters with a single drill bit.
- The drill bit is ideal for deburring, drilling round holes and enlarging existing holes.
- Pre-punching is unnecessary as the split tip allows easy drilling.
- The CNC ground spiral groove offers optimised chip removal and reduced vibration for uniform drilling.
- Axial and radial back grinding ensure excellent cutting performance and absolute smoothness.
- This step drill is suitable for use on thin materials, such as non-ferrous metals, sheet plastic, sheet steel, plastic and stainless steel.
- The step drill is made of HSS (High-Speed Steel) and will last a long time if coolant is used.
- Using laser, the hole diameters in both spiral grooves are clearly visible and durably marked.
- Hexagonal shank for maximum power transfer in standard three-claw drill chucks and drill/screw machine holders.
Key features according to our expert
-
Smallest diameter: 4 mm
-
Largest diameter: 20 mm
-
Shank size: 1/4 inch
Specifications / All features
-
Brand:
BOSCH
-
02790265
-
EAN:
3165140666503
-
Supplier number:
BOSCH 2608588070
- Smallest diameter
- 4 mm
- Largest diameter
- 20 mm
- Shank size
- 1/4 inch
- Implementation
- HSS-AlTiN
- Overall length mm
- 70,5
- Shaft diameter in.
- 1/4
- Stair height mm
- 4
- Stair diameter (range) mm
- 4-20
