Pack of 6 1/4 Inch Screw Socket Bit Screwdriver Bit In & External Double End Screw Nut for M6 M8 M10 Screw

• Material: The sleeve of the double-head screw is forged with chrome molybdenum steel and phosphated on the surface with soot to enhance the not easy to rust protective effect.
• Full specifications sleeve: the sleeve has different sizes of 6 pieces, which are suitable for drills, wind batches, electric batches and other tools and are easy to use.
• Universal: the screw socket has a high rigidity, high and a high bite performance. Applicable screw diameter: 6/8/10 mm (M6/M8/M10).
• Heat treatment: The entire heat treatment process when forging makes the screw base more robust and wear-resistant and can be used for a long time.
• Especially applicable sleeve: the screw sleeve is suitable for 6.35 mm (1/4 inch) shank, a universal hex drill, and can also be used for pre-installed furniture screws.

Specification: Item type: screw base. Material: chrome molybdenum steel Screw head size: about 6.35mm (1/4") Applicable screw diameter: 6/8/10 mm (M6/M8/M10). Quantity: 6 Package contents: 6 x screw socket.