5pcs Hss Step Drill Bit Set Titanium Coated Step Drill Bits With Aluminum Box

Description: 5Pcs HSS Step Drill Bit Set Titanium Coated Step Drill Bits with Aluminum Box Specification: Model Diameter Length Material Surface 1# 6-35mm(13 step) 78mm high speed steel titanium coated 2# 4-22mm(10 step) 75mm 3# 6-18mm(7 step) 62mm 4# 4-12mm(9 step) 70mm 5# 4-12mm(5 step) 62mm Box size 150x105x40mm Features: Use for home and industrial. Drop forged, heat treated, high speed steel, fully polish, druable. Take the guessing out of drilling by supplying the proper depth for you. Package Included: 5 x Step drill bits More Details: