Left: Torx key, Middle: 2264 80° LH boring tool holder and Right: 2263 55° LH boring tool holder .
Each comes with a carbide insert and hold-down screw and Torx key when purchased separately.
Each boring tool comes with a carbide insert, hold-down screw and special Torx key. The 3/8" round shank is held in a P/N 7600 tool post. The P/N 2263 holder accepts a 55° insert and requires a minimum hole size of 3/4". The 2264 holder accepts an 80° holder and fits into a minimum hole size of 1/2". In addition to fitting into a smaller hole, the 80° insert offers a little more strength, while the 55° insert will cut into a sharper corner. The holders are made from case hardened steel with a black oxide finish. A flat is ground on one side so the two hold-down screws of the 7600 tool post can tighten against it to keep the tool from rotating
Download PDF 2259-2264 Instructions