Straight Flute HSS Step Drill Bit
Spiral Flute HSS Step Drill Bit
Titanium Coated straight flute step drill bit
Titanium Coated Spiral Flute Step Drill Bit
Double Spiral Flute Step Drill Bit
HSS_step_drills_with_TiALN_coated_step_drill
Titanium Coated Double Spiral Flute Step Drill Bit

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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"