HSS step drills

Step drill HSS 9 drilling steps dia. 4-12 mm 3-surface shaft dia. 6 mm

STB HSS 04-12/6

Item number:: 25201036
EAN:: 4007220165867

Step drill HSS 9 drilling steps dia. 4-12 mm 3-surface shaft dia. 6 mm 1

Step drill HSS 9 drilling steps dia. 4-12 mm 3-surface shaft dia. 6 mm 2

Step drill HSS 9 drilling steps dia. 4-12 mm 3-surface shaft dia. 6 mm 3

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Technical information

Step drill HSS 9 drilling steps dia. 4-12 mm 3-surface shaft dia. 6 mm

Dia. shank: 6 mm
Length, total: 65 mm
Number, drill steps: 9 pcs.
Version: HSS
Packaging unit: 1 piece

Description

HSS step drills for drilling and deburring thin sheets, pipes and profiles made from various materials. To ensure reliable torque transmission, all step drills have a three-surface shaft.

Advantages

Drilling and deburring in a single step.
Completely smooth running and a high cutting performance.
The high-quality drill tip ensures effortless centring and drilling.
The tool taper makes it easier to pull back from drilled plates.
Chips which do not break are neatly removed as with a spiral drill.
Built-up edges and cold welding on the blades are prevented.

Recommendations for use

Use HSS step drills on sheets, pipes and profiles with a maximum thickness of 4 mm.
Use cutting oil/compressed air as a coolant and lubricant in the case of step drills without a coating.

Safety notes

To ensure reliable torque transmission, step drills have a three-surface shaft.

Materials that can be worked: Aluminium; Brass; Bronze; Case-hardened steels; Chipboard; Copper; Fibre-reinforced thermosetting plastics (GRP, CRP); Fibre-reinforced thermosetting plastics (GRP, CRP) with a fibre content > 40 %; Fibre-reinforced thermosetting plastics (GRP, CRP) with a fibre content ≤ 40 %; Hard non-ferrous metal; Hardwood; Other; Other non-ferrous metals; Plastics; Soft aluminium alloys; Soft titanium alloys (tensile strength 500 N/mm²); Soft wood; Steel; Steel, cast steel; Steels up to 1,200 N/mm² (< 38 HRC); Steels up to 700 N/mm² (< 220 HB); Thermoplastics; Thermosetting plastics; Titanium; Titanium alloys; Tool steels; Tough aluminium alloys; Wood; Zinc