ITEM NAME:5Pcs 1/4" Hex Shank Quick Change Metal Tools Wood HCS Drill Bit Set 4-10mm New 5Pcs 1/4" Hex Shank Quick Change Metal Tools Wood HCS Drill Bit Set 4-10mm New a.imagelink a:hover.imagelink {color:#000000;.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.