R8 2" HEAD BORING TOOL SET (1906-5935)

R8 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 0.001" graduation for accurate hole sizing. Fitted durable carrying case included. 1 DIV = 0.001 which means on the 0-50 dial when turning the dial by 1 division/graduation, the boring head's travel is 0.001" in radius movement and 0.002" in diameter movement. On the 0-100 dial, the boring head's travel is 0.0005" in radius movement, 0.001" in diameter movement. 5 boring bars. Boring bar hole size is 1/2". Boring head thread is 7/8"-20. Offset is 5/8". Crosshole is 1/2". Shank thread is 7/16"-20. Minimum bore diameter is 0.300". Maximum bore diameter is 5.700". Shipping Weight: 4.95 lbs