Koken 18400M Impact Socket 1"Dr 38mm Sas Due to their flexible construction

Due to their flexible construction these are used for greasing hard to reach grease fittings

The box ends also feature Z-Drive design that contacts the flat walls of fasteners for better grip and less chance of rounding up to 32mm/1 1/4”

TC-COVER1: TengTools Cover For Top/Middle/Roll Boxes - Material: Nylon

16 x 290mm - 10mm Shank

Koken 18400M Impact Socket 1"Dr 38mm Sas Due to their flexible construction18400M 1"Dr Impact Socket 6pt 38 x 66mmMade In Japan, Highest Quality, Most Dependable Flat Drive sockets to ensure a flat surface contact between the socket and the Bolt Nut. The flat drive system reduces wear and allows to transmit a higher torque value. Cold Forged Heat Treated Chrome Molybdenum Alloy exceeding Din 3129, ISO2572 2 Standards.