Comprising 257 pieces for diesel engine maintenance, this intermediate tool set includes ratchets, sockets, and wrenches constructed from alloy steel with a polished chrome finish. The ratchets utilize a 90-tooth gear with a 4° swing arc to access fasteners in confined areas, while the box ends employ an off-corner loading design to prevent rounding. Hard-stamped markings distinguish between SAE and metric sizes using double or knurled lines.

Comprising 257 pieces for diesel engine maintenance, this intermediate tool set includes ratchets, sockets, and wrenches constructed from alloy steel with a polished chrome finish. The ratchets utilize a 90-tooth gear with a 4° swing arc to access fasteners in confined areas, while the box ends employ an off-corner loading design to prevent rounding. Hard-stamped markings distinguish between SAE and metric sizes using double or knurled lines.