GBJ 1/2in Boring Bar Set Precise Internal Lathe Machining

Package indludes. 4pcs 1/2in shank Boring bars + 4pcs TCMT21.51 carbide inserts (Installed) +4pcs M2.5*6 screws + 1piece T8wrench

The 4pcs Turning tool holders. shank diameter=1/.2", the length is 4in, 3.6in ,3in and 2.7in, can meet your various machining requirements, holders are made of high quality 40CrMo,black oxide smooth finish, which are durable, corrosion resistant and has high hardnes;

Carbide insertsTCMT 21.51(TCMT110204), 3/32" Thick, 1/64" Radius, 7 degrees relief angle,triangle inserts for aluminum,steel and stainless steel;wear resistance, good toughness, longer life, The indexable carbide turning tool insert holder set is suitable for varied external turning;

Each tool holder comes with 1 piece indexable tin coated carbide inserts, with positive rake cutting angles and built-in chip breakers, which are ideal for general cutting operations.The blades are sturdy, low friction coefficient, wear-proof, stable, sharp and durable

Wide applications,metal lathe cutting tools are suitable for varied external and internal turning and Semi-finishing, roughing machining of steel and metalwork.