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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.
€15.45 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 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 15.
Rated 5 out of 5 by from Excellent tool Used it to drill many holes of different sizes whilst doing a camper conversion, drilled panels with ease.
Date published: 2017-03-25
Rated 5 out of 5 by from Spirual flute drill bit Very good bit for acceptable price. I make over hundred wholes and still working like a new;-)
Date published: 2017-01-05
Rated 5 out of 5 by from Perfect for My Task Need to drill a 20mm hole in sheet steel bathroom cabinet for a wiring grommet. Drilled a small 3mm pilot hole and then used the drill. It drilled though each step until hole was at the max for this spiral of 20mm. It was a perfect hole and the grommet fitted perfectly. It just delivered what I needed. Excellent.
Date published: 2016-10-23
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
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