Product description
- 3-piece step drill bit set HSS 4-12; 4-20; 6-30 mm
- Smooth drilling of various diameters with one drill bit
- HSS staircase drill bit can make smooth drillings 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.
- 3-surface shank for drilling machines.
Key features according to our expert
-
Smallest diameter: 4 mm
-
Largest diameter: 30 mm
-
Drill set type: Stair drill set
-
Quantity per set: 3
Specifications / All features
-
Brand:
BOSCH
-
02790223
-
EAN:
3165140630207
-
Supplier number:
BOSCH 2608587426
- Smallest diameter
- 4 mm
- Largest diameter
- 30 mm
- Drill set type
- Stair drill set
- Quantity per set
- 3
- Implementation
- HSS
- Overall length mm
- 66.5 / 70.5 / 93.5 mm
- Shaft diameter mm
- 6 / 8 / 10 mm
- Stair height mm
- 4 / 4 / 4 mm
- Stair diameter (range) mm
- 4-12 / 4-20 / 6-30 mm
