Meco 4pcs Hss Titanium Coated Step Drill Bits 1/4 Inch Hex Shank 3/8 Inch Round Shank

Description: 4pcs HSS Titanium Coated Step Drill Bits 1/4 Inch Hex Shank 3/8 Inch Round Shank Features: 1.Unique ladder structure, 1/4" Hex shank. Straight grooves. 2.Automatically Deburrs Holes as you Drill. Two-flute Design Gives You Faster, Smoother Cutting. 3.Titanium Nitride Coating for Cooler Running, can effectively extend the service life of the drill bit. 4.Suitable for carbon steel plate, sheet iron, insulation boards, wood. Cannot be used for stainless steel. 5.A great helper for Carpenter. Specifications: Material:HSS 4241 Shank :1/4" Hexagonal shank& 3/8" Round Shank Surface treatment: titanium Tools: pistol drill, bench drill. Quantity: 4pcs Size: 3/16-1/2'' 6 steps: 3/16 '' 1/4 '' 5/16 '' 3/8 '' 7/16 '' 1/2 '' (1/4" Shank) 1/4-3/4'' 9 steps: 1/4 '' 5/16 '' 3/8 '' 7/16 '' 1/2 '' 9/16 '' 5/8 '' 11/16 '' 3/4 '' (1/4" Shank) 1/4-1-3/8" 10 steps: 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1 / 8, 1-1 / 4, 1-3 / 8 " (3/8" Shank) 1/8-1/2'' 13 steps: 1/8 '' 5/32 '' 3/16 '' 7/32 '' 1/4 '' 9/32 '' 5/16 '' 11/32 '' 3/8 '' 13/32 '' 7/16 '' 15/32 '' 1/2 '' (1/4" Shank) Package Included: 1x Set(4pcs) Step Drill More Details: