10 Flute Metal M35 Cobalt Countersink Drill Bit Set 82° 10pcs 1/4" Hex Shank Countersunk Bit Set 1/4” 3/8” 1/2” 5/8 With Holder

High-concerned chemical : None Origin : Mainland China Certification : None DIY Supplies : Woodworking Material : Other Type : Center Drill Bit Use : Metal Drilling