Gold Member Since 2016
Audited Supplier
Changzhou Bomi Tools Co., Ltd.

Drill, Step Drill, Drill Bits manufacturer / supplier in China, offering HSS Step Drill, Cobalt Steel Premium Quality Reduced-Shank Drill Bit, 12mm Replacement Twist Step Drill Bit Stop Collar and so on.

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HSS Step Drill

Purchase Qty.:
(Pieces)
500-999 1,000+
FOB Unit Price: US $3.5 US $1.5
Purchase Qty. (Pieces) FOB Unit Price
500-999 US $3.5
1,000+ US $1.5
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Payment Terms: L/C, T/T, D/P, Paypal

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Basic Info
  • Model NO.: BM-05-06
  • Length: Jobber-length
  • Material: High Speed Steel
  • Size:6.0: Step Length:9.0
  • Customized: Customized
  • Type: Twist Drill Bit
  • Usage: Metal Drilling
Product Description
  • Drill bit for use with pocket hole joinery
  • Small tip includes clearance hole for screw shank
  • Large diameter creates flat-bottomed hole
  • Recommended for use with corded high-rpm drills
HSS Step Drill
HSS Step Drill
This product applies to various cutting series: it is suitable for steel, iron, copper, plastic, etc.
HSS 90°step drill (DIN8374)
For thread Step              MMCountersinker  MM           Step length   MMFlute length         MMTotal length   MM
M33.2 6.0 9.0 57.0 93.0 
M44.3 8.0 11.0 75.0 117.0 
M55.3 10.0 13.0 87.0 133.0 
M66.4 11.0 15.0 94.0 142.0 
M88.4 15.0 19.0 114.0 169.0 
M1010.5 18.0 23.0 130.0 198.0 






HSS 180°step drill (DIN8376)
For thread Step              MMCountersinker  MM           Step length   MMFlute length         MMTotal length   MM
M33.4 6.0 9.0 57.0 93.0 
M44.5 8.0 11.0 75.0 117.0 
M55.5 10.0 13.0 87.0 133.0 
M66.6 11.0 15.0 94.0 142.0 
M89.0 15.0 19.0 114.0 169.0 
M1011.0 18.0 23.0 130.0 191.0 

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