Tapmatic ER20 Reverse Tapping Head 1" Shank RD/ICB 50 (LOC1256B) $249.95 Brand Tapmatic MPN RD/ICB 50 Shank Diameter 1" Collet Type ER20 Warehouse Location LOC1256B condition Used Tapmatic ER20 Reverse Tapping Head 1" Shank RD/ICB 50 (LOC1256B) SKU: SMT19942 Brand: Tapmatic Condition: Used MPN: RD/ICB 50 Shank Diameter: 1" Collet Type: ER20