ITEM NAME:5Pcs 1/4" Hex Shank Quick Change Metal Tools Wood HCS Drill Bit Set 4-10mm NJ!E Description: 100% brand new and high quality Fits All 1/4" Hex Cordless Screwdrivers Fast replacement composite cone, uses drill edged principle. Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency. Self-centering point, do not need assistant center drilling or center punching. High hardness, rustproof, solid and durable. Color: as the picture show Size:4, 5, 6, 8 , 10mm 1/4" (6.35mm)Hex Shank Material: High Carbon Steel Quantity: 1 set(5pc) Note: Please allow 1-2mm differs due to manual measurement, thanks. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you! Package includes: 5pcs 1/4" Hex Shank Wood HCS Drill Bit Set 4 5 6 8 10mm Quick Change Metal Tools.1/4" (6.35mm)Hex Shank. Fits All 1/4" Hex Cordless Screwdrivers. Size:4, 5, 6, 8, 10mm. Material: High Carbon Steel. Self-centering point, do not need assistant center drilling or center punching. Due to the difference between different monitors, the picture may not reflect the actual color of the item.