[3   Boring Head |  NT  & NMTB 40 Shank]

[2   Boring Head |  MT2 Shank]

[3   Boring Head |  R8 Shank]

[2   Boring Head |  R8 Shank]

MT2 2" Head Boring Tool Set ~ Rugged design allows excellent rigidity for chatter-free boring. ~ Head features a threaded back for use with multiple shanks. ~ Set complete with boring head, boring shank, carbide tipped boring bars & L-shape hex wrenches. ~ Dial on head with 0. 0005" graduation for accurate hole sizing. ~ Fitted durable carrying case included. ~ 9 boring bars. ~ Boring bar hole size is 1/2". ~ 1 DIV = 0. 001 which means on the 0-50 dial when turning the dial by 1 division/graduation, the boring heads travel is 0. 001" in radius movement and 0. 002" in diameter movement. On the 0-100 dial, the boring heads travel is 0. 0005" in radius movement, 0. 001" in diameter movement. ~ Boring head thread is 7/8"-20. ~ Offset is 5/8". ~ Cross hole is 1/2". ~ Shank thread is 3/8"-16. ~ Minimum bore diameter is 0. 394". ~ Maximum bore diameter is 5. 906". ~ Maximum bore depth is 1. 97".