Erbauer Spiral Flute Step Drill Bit 4-20mm

Product Code: 8528D
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


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.
€15.95 Incl. 20% VAT
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Additional Information
Technical Specification
  • Brand : Erbauer
  • Product Length : 96 mm
  • Product Type : Spiral Flue Step Drill Bit
  • Total Product Weight : 0.22 kg
  • Model No : 13-PPS006
  • Pack Size : 1
  • Capacity Wood : 5 mm
  • Capacity Steel : 5 mm
  • Product Diameter : 4-20 mm
  • Manufacturer Guarantee : 1 Year Manufacturer's Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

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Erbauer Spiral Flute Step Drill Bit 4-20mm is rated 5.0 out of 5 by 12.
Rated 5 out of 5 by from Step drill. Excellent bit of kit, needed to drill through aluminum pipe , piece of cake with this.
Date published: 2016-05-12
Rated 5 out of 5 by from what size do I need? Great drill bit if you don't know the size you need, I knew I needed to drill a hole between size 13 - 15 and this little gem made this so easy!
Date published: 2016-04-07
Rated 5 out of 5 by from Cut above!! Bought this for some conduit cut outs,looked the part with good width markings and cut like a dream.Wish all my drill bits were this good!!!
Date published: 2016-03-27
Rated 5 out of 5 by from A good bit of kit I got this to drill a few holes of varying sizes. It does exactly that and it does it really really well. Much much easier than having several different drill bits.
Date published: 2016-03-02
Rated 5 out of 5 by from Drilling holes in Transit roof I needed to mount two antennas 20 mm diameter on the roof of a transit. I used this bit for the first hole and it did a good job. Then I added in Exact Cutting Paste 50g (part no. 46289) and it did an even better job in the second hole. With the cutting paste hole was neater (i did not have to file the burrs off the edge) and drilled faster and the bit seemed happier - less fight back against the drill's torque. Great bit of kit and with the cutting paste it'll last longer too.
Date published: 2016-02-18
Rated 5 out of 5 by from Brilliant Drill bit! This is the first step-drill bit i've used, And im surprised how useful and effective it is! Cuts through really smoothly, Recommend this product!
Date published: 2016-02-08
Rated 5 out of 5 by from 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......
Date published: 2016-01-18
Rated 5 out of 5 by from 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
Date published: 2015-09-27
  • 2016-10-24T07:33CST
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