R8 3" Head Boring Tool Set
Set complete with boring head, boring shank, carbide tipped boring bars& L-shape hex wrenches.
Rugged design allows excellent rigidity for chatter-free boring.
Head features a threaded back for use with multiple shanks.
Dial on head with 0.0005" 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.
12 boring bars.
Boring bar hole size is 3/4".
Boring head thread is 1~1/2"-18.
Offset is 3/4".
Crosshole is 3/4".
Shank thread is 7/16"-20.
Minimum bore diameter is 0.394".
Maximum bore diameter is 7.874".
Shipping Weight: 10 lbs