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Click here to see HSS Step Drill Bit Sets

HSS Step Drill Bits

Features:

  • Made of high quality high speed steel and Cobalt steel
  • Producing round, smooth holes in a wide variety of material
  • Enlarging holes in sheet metals without center punch or pilot bits
  • Using bench drill or light drilling machines
  • Available flute shape: straight flute, sprial flute, double spiral flute
  • Available surface treatment: White; Titanium Coating; TiALN Coating
  • Available shank type: round shank, three flatted shank, hex shank
  • Specifications can be customized
Metric Sizes
No. of sizesHole sizesIncrementsShank Size
54-122mm6mm
94-121mm6mm
94-202mm8mm
104-222mm10mm
144-302mm10mm
154-322mm13mm
135-352-3mm13mm
76-182mm10mm
86-202mm8mm
126-302-3mm10mm
Fractional Sizes
No. of sizesHole sizesIncrementsShank Size
131/8" - 1/2"1/32"1/4"
63/16" - 1/2"1/16"1/4"
91/4" - 3/4"1/16"3/8"
123/16" - 7/8"1/16"3/8"
101/4" - 1 3/8"1/8"1/2"