• 6700SZ 1/4" square drive socket hex profile imperial on rail-187 (3/16, 7/32, 1/4, 11/32, 3/8, 7/16, 1/2") • 6956 1/4" spinner handle • Highly polished finish • High-performance alloy steel • Less wear and damage to fastener thanks to Dynamic-Drive™ profile sockets • Knurled shank for finger turning of free running fasteners • Socket gives maximum load distribution and torque from the additional flank area • Standards: ISO 1174 and DIN 3120