Hex Allen Socket Bit 1/2" (10 mm) H10 x 100 mm long — YATO

Long hex (Allen) socket bit for 1/2" drive, size H10 (10 mm) with a 100 mm overall length, manufactured by YATO. This hardened steel bit is intended for use with 1/2" ratchets, breaker bars and torque tools to access recessed, deep-set or hard-to-reach hex fasteners. The extended length improves reach in assemblies and machinery where standard-length bits cannot engage fasteners securely.

Advantages

The 100 mm long H10 hex socket bit provides improved access to recessed hex fasteners while maintaining a secure fit to reduce rounding. Hardened steel construction increases wear resistance and durability under repeated torque applications. Compatibility with 1/2" drive tools allows use with common ratchets and torque wrenches, supporting controlled tightening and loosening in maintenance and assembly operations.

Suitable for

• Automotive repair and maintenance where deep-set hex bolts are present
• Industrial machinery assembly and disassembly
• Equipment maintenance in workshops and service centers
• Applications requiring use with torque tools or long-reach ratchets

Key specifications

• Drive size: 1/2" compatible
• Hex size: H10 (10 mm)
• Overall length: 100 mm
• Material: hardened steel
• Designed for use with ratchets, torque wrenches and breaker bars

How to use

Select a 1/2" drive ratchet or torque wrench compatible with the long hex bit. Insert the bit into the tool's square drive until it seats securely. Place the hex end onto the fastener, ensuring full engagement of all six sides before applying torque. For torque-controlled tightening, set the torque tool to the required value and apply force smoothly. After use, inspect the hex end for rounding or wear and store the bit in a protective holder to maintain tip condition.

Usage recommendations

Use the long H10 hex bit when standard-length sockets cannot reach recessed fasteners. Avoid applying excessive impact or side loading that could deform the bit; for high-torque loosening, use appropriate impact-rated bits or impact tools. Regularly inspect for wear and replace the bit when signs of rounding or cracking appear to ensure safe and accurate fastening.