XMEIFEITS Step Drill 3pcs HSS Metric 1/4 Hex Shank T-itanium Coated Step Drill Bit Cutting Tool Metal laque Sharpener Drill Bit Set Cone

Before Use, Check the Power and Stiffness of the Machine Tool to Ensure That the Required Diameter of the Step Drill bit Can Be Used on the Machine Tool
3pcs 4241 HSS Metric 1/4 Hex Shank T-itanium Coated Step Drill Bit Cutting Tools Smoother Drill Bit Set Bulk Packaging
Features:
Automatically Deburrs Holes As You Drill
Two-Flute Design Gives You Faster and Smoother Cutting
T-itanium Nitride Coating for Cooler Running
Quick-Change 1/4"Hex Shank
High Speed Steel for Long Life
These Step Drill Bits Are Ideal for Variety of Materials From Metal,Plastic,Fiberglass to Wood
They Also Help to Enlarge Existing Holes
the Two Flute Design Tips Can Make the Penetration Faster without Chipping
3 pcs T-itanium HSS Cone Step Drill Bit Set 1/4"Hex Shank
3 pcs 1/4'Large HSS Hex Shank T-itanium Cone Coated Step Drill Bit Set with case
3 pcs Large HSS Steel Step Cone Drill T-itanium Bit Set Hole Cutter
Specification:
Material:HSS
1/4"Hex Shank
Sizes:(approx.)
3-12mm:3,4,5,6,7,8,9,10,11,12 mm/0.12,0.16,0.20,0.24,0.28,0.31,0.35,0.39,0.43,0.47 in
4-12mm:4,6,8,10,12 mm/0.16,0.24,0.31,0.39,0.47 in
4-20mm:4,6,8,10,12,14,16,18,20 mm/0.16,0.24,0.31,0.39,0.47,0.55,0.63,0.71,0.79 in
4241 High-Speed Steel HSS(Suitable for Use in the Workpieces Whose Hardness Is 25 Degrees Such As Carbon Steel,Plate,Insulation Board,and Wood Board)
Packing list:
3*Step Drill Bit with Bag