Socket Wrench Set Asta A-1M9HEX — Metric Hex Sockets 1/4" & 3/8" Drive

Asta A-1M9HEX is a set of impact socket wrenches with metric internal hex (Allen) sockets designed for 1/4" and 3/8" drive tools. The kit covers a selection of common metric hex sizes to support tightening and loosening of hex fasteners in automotive repair, industrial maintenance and general mechanical service. Sockets are intended for use with impact drivers and ratchets that accept 1/4" and 3/8" drives and where durable hex sockets are required.

Advantages

The set offers a range of metric hex socket sizes in two drive formats, providing versatility for different tools and access conditions. Impact-rated construction increases resistance to wear and deformation under high torque from impact drivers. The dual drive compatibility (1/4" and 3/8") allows swapping between compact and standard handles or impact wrenches without changing socket type. The sockets are made for secure engagement with internal hex fasteners, reducing the risk of rounding and improving torque transfer.

Suitable for

• Automotive repair and brake, engine and chassis fastener servicing
• Industrial equipment maintenance and assembly work
• Mechanical workshops and professional hand tool kits
• Home DIY projects requiring durable hex sockets and impact compatibility

Key specifications

• Drive sizes: 1/4" drive and 3/8" drive compatibility
• Socket type: internal metric hex (Allen) sockets
• Intended use: impact-rated for use with impact drivers and impact wrenches
• Construction: hardened metal designed for high-torque applications
• Applications: automotive, industrial maintenance, mechanical repair

How to use

Select the socket matching the hex fastener size, mount it onto the appropriate drive adapter or directly onto the 1/4" or 3/8" drive tool, and seat the socket fully onto the fastener to ensure correct engagement. When using impact tools, hold the tool steady and apply controlled bursts of power to tighten or loosen fasteners. For manual ratchet use, operate the ratchet with steady force, avoiding excessive side loads that could stress the socket or fastener.

Usage recommendations

Use impact-rated sockets only with compatible impact drivers and avoid using them on non-impact power tools where not recommended. Inspect sockets regularly for wear or damage and replace any that show deformation or cracks. Apply appropriate torque values for fastener grade and size, and use a torque wrench for final tightening when accurate torque is required.