Koken 16300M Deep Impact Socket 3/4"Dr 20mm SEMS Fasteners Septone also recommend after using

Septone also recommend after using Glass Fibre Filler for hole bridging

Manufactured from never rust aluminium for durability

- Maximim Drag: 15lb

Holemaker Uni Shank Tinite (Tin) Cutter 46mm X 25mm

Koken 16300M Deep Impact Socket 3/4"Dr 20mm SEMS Fasteners Septone also recommend after using16300M 3 4"Dr Deep Impact Socket 6pt 20 x 100mmMade 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.