Wera 05071080001 3800/4 1/4'' Hex Stainless Steel Slotted Power Drive Bit is a high quality bit made out of stainless steel. Wera stainless steel bits are a solution to the extraneous rust problem. The Wera 05071080001 3800/4 1/4'' Hex Stainless Steel Slotted Power Drive Bits are suitable for holders as per DIN ISO 1173-F 6.3.