Insert Bit, 5mm Hex Head, 1-4" Hex Shank, 1-1-4" Long, Bulk

features and benefits:

• used commonly in furniture assembly, bicycle maintenance and manufacturing equipment
• all irwin fastener drive bits are manufactured to meet ansi standards
• forged from high-grade s2 steel, irwin bits are between 58 and 62 on the rockwell hardness scale