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ATOPLEE Step Drill Bit, 3pcs 6mm Hex Shank HSS Nitriding Black Spiral Fluted Unibit Step Bit for Hole Drilling in Metal, Copper, Aluminum,Wood,Plastic,Sizes 4-12mm/4-20mm/4-32mm

KWD 9
Brand
ATOPLEE
Category
Cutting Tools
Weight
247 g
– 1 +

Special Features

  • {Good Quality Metarial} Made of HSS 4241,high hardness,strength and longevity.
  • {Design}Shank: hex shank;Groove: spiral ; Surface treatment: Nitriding black.
  • {Size}Shank diameter: 6mm;Step quantities：5/ 9 /15 steps;Step diameter:001 :4, 6, 8, 10, 12mm ; 002 :4, 6, 8, 10, 12, 14, 16, 18, 20mm;003: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm.
  • {Usage}Used with pistol drill or bench drill, water it to cool while working to prolong its life, the proper drilling speed is 250-400 rpm.Suitable for these work-pieces that hardness is lower than 25 degree and the thickness is beyond 4mm, such as aluminum parts, insulation board, PVC plate, etc.
  • {Package Included}3x Multiple Hole Stepped Up Bit.

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