Ko-Ken 1/4" Drive Hex Screwdriver Bit 2 x 70mm - KO121H70/2

Ko-Ken is a Japanese precision tool brand supplying professional-grade sockets, socket sets, ratchets, and hand tools to automotive, engineering, aerospace, and industrial operations across Australia.

The Ko-Ken 1/4" Drive Hex Screwdriver Bit is a precision Ko-Ken tool manufactured to professional grade for reliable performance in automotive, engineering, and industrial maintenance applications.

Where this product is used

Ko-Ken impact screwdriver bits are hardened for use with impact drivers and drills, providing superior durability in high-torque and repetitive fastening applications over conventional insert bits.

• High-cycle fastener driving with electric or pneumatic impact drivers and drills in manufacturing and assembly
• Automotive assembly and repair using Torx, Phillips, hex, or slotted bits with impact-rated durability
• Production line and workshop fastening where standard insert bits fail prematurely under impact operation

Key specifications

Selecting the right option

Select by bit type (Torx, Phillips, slotted, hex) and size for the fastener, and by shank length — standard (25mm) for impact drivers; extended (60mm+) for deep recesses. Confirm the bit is impact-rated — standard insert bits are not hardened for the torsional shock of impact operation.