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Erbauer Spiral Flute Step Drill Bit 4-20mm

Product Code: 8528D

Step drill bit with spiral flute. High quality bit providing a high level of precision and efficiency. M2 ground steel construction.

  • Excellent Torque Transfer
  • Built-In Deburrer
  • Rotastop Shaft
  • Spiral Flutes Remove Swarf
  • Cuts Wood up to 5mm Thick
  • View more information

Drills stainless steel up to 5mm thick. Drills wood up to 5mm thick. Outside bit diameter: 4, 6, 8, 10, 12, 14, 16, 18 and 20mm.



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Rated 5 out of 5 by Best Step Bit I've Bought Bought for creating larger holes in aluminum back boxes for garden wall brick lights. Needed to get 2 set's of cables in & out on loop of 12 brick lights but wouldn't fit on access hole that was there. This tool did the job and unlike some step bits I could see the size of the depth that I wanted on side of the tool. Also used to make 20mm holes for copex in the plastic back box. Neat and tidy. Great tool so far...... 18 Jan 2016
Rated 5 out of 5 Great Bought for doing steel trunking and conduit. Was fed up with holesaw pilot bits breaking. Does a great job, don't even need a pilot hole and you can use it for drilling quarter inch holes for screws. Also used it on PVC trunking and the hole was perfect and a very clean cut. Great wee tool 27 Sep 2015
Rated 5 out of 5 by Good product.. I've been surprised by this little cone drill bit. Really good...! Got a holes in 3 mm bar from 11 mm to 20 mm haslle free. 7 Jun 2015
Rated 5 out of 5 by The hole truth Well-made, sharp. Easily did the job, through 5mm steel plate. This is the cheaper option and haven't tried in comparison to others but I would recommend. 25 Nov 2014
  • 2016-02-05 T06:18:56.431-06:00
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5 Nov 2015
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Brand Erbauer
Capacity Steel 5 mm
Capacity Wood 5 mm
Model No 13-PPS006
Pack Size 1
Product Diameter 4-20 mm
Product Length 96 mm
Product Type Spiral Flue Step Drill Bit
Total Product Weight 0.22 kg