Material :
Chrome molybdenum steel, surface burnished.

Version :
Sturdy shape especially for use with electric or compressed air impact wrenches. With cross hole and snap ring groove for securing sockets. Internal square to DIN 3121. For safety reasons must always be secured using a suitable locking pin and O-ring.

Note :
Further sizes and types on request. HOLEX IMPACT hexagon sockets including imperial sizes are available from our eShop (No. 653202).