5Pc Titanium Coated High Speed Steel Step Drill Bits with 1Pc Automatic Center Punch for Drilling Sheet Metal Step Drill Bit Set

Material: High Speed Steel Body, Titanium Coating Measurement System: Imperial Drill Bit Specification: 10-Step 3/8" Drill Bit from 1/4" to 1-3/8" 11-Step 3/8" Drill Bit from 3/16" to 7/8" 9-Step 3/8" Drill Bit from 1/4" to 3/4" 12-Step 1/4" Drill Bit from 1/8" to 1/2" 6-Step 1/4" Drill Bit from 3/16" to 1/2" Center Punch Specification: Thimble Hardness: HRC 58-62 Length: 5" Diameter: 0.5" Weight: 550g/1.21lbs (including the case) Package Includes: 5 x Step Drill Bits 1 x Center Pun