Kaiser. 708.866 18-22mm Ø Boring Head 310.031 5/8 Carbide Shank WCGT 020102

  

708.866" 18-22mm Ø Boring Head 310.031 5/8" Carbide Shank WCGT 020102. Cartridge is 625.020 which takes any WCxx 0201xx carbide insert such as WCGT or WCMT 020101 020102 020104 etc. Solid carbide shank is 5/8"x4.25" (part # 615.237) and the entire assembled unit is about 5.7 OAL.

Boring head appears to be nearly new, barely a scratch on it.