R8 3″ Boring Head Adjustable Milling Machine 12pc Bar Tool Set 3/4″ shank
R8 3″ 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.
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″.
Maximum bore depth is 3.15″.