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Bosch HSS step drill bit, 4-20 mm diameter range.
Bosch HSS step drill bit 4–20mm.
Step drill bit enlarging a circular hole in a metal sheet.

HSS Step Drill Bit, 3-flat Shank

For rotary drills/drivers

HSS Step Drill Bit performs smooth drilling in several diameters with one drill bit
  • HSS Step Drill Bit performs smooth drilling in several diameters with one drill bit
  • Pre-punching is not necessary as the split-point tip allows for an easy start
  • CNC ground spiral flute enables optimised chip removal and less vibration for even drilling
  • Highest cutting smoothness due to axial and radial relief grinding
  • Made of HSS for a long lifetime. Laser-markings for hole diameters.
  • Made of HSS for a long lifetime. Laser-markings for hole diameters. 3-flat shank for high-torque transmission, no slipping
  • 3-flat shank prevents slipping in the chuck of rotary drills and drivers
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Materials
Metal pipes and profiles.
Non-ferrous metals.
Aluminum.
Plastic.
Metal sandwich panel.
Select options

Step diameter (range) mm 4 options

Step height mm 4

Shank diameter mm 3 options

Choose a pack size 1 Pcs

Available product options (5)

from 

£37.94

incl. VAT

£31.62

excl. VAT


HSS Step Drill Bit, 3-flat Shank

from 

£37.94

incl. VAT

£31.62

excl. VAT

Smooth Drilling in Several Diameters with One Drill Bit

HSS Step Drill Bit performs smooth drilling in several diameters with one drill bit

  • CNC ground spiral flute enables optimised chip removal and less vibration for even drilling
  • Highest cutting smoothness due to axial and radial relief grinding
  • Made of HSS for a long lifetime. Laser-markings for hole diameters.
  • Made of HSS for a long lifetime. Laser-markings for hole diameters. 3-flat shank for high-torque transmission, no slipping

Product Options

Available product options: 5

Expand Part number Version Step diameter (range) mm Step height mm Shank diameter mm Pack quantity Price Availability
2 608 587 425 HSS 4-12 4 6.0 1 Pcs £48.86 Buy from a Bosch Partner
2 608 597 518 HSS 4-12 4 6.0 1 Pcs £37.94 Buy from a Bosch Partner
2 608 597 519 HSS 4-20 4 8.0 1 Pcs £61.20
2 608 597 520 HSS 6-30 4 10.0 1 Pcs £101.64
2 608 597 521 HSS 6-39 4 10.0 1 Pcs £125.16

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