8.0 inches x 10.0 inches x 4.0 inches. 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. R8 3 Head Boring Tool Set Rugged design allows excellent rigidity for chatter-free boring. Set complete with boring head, boring shank, carbide tipped boring bars & L-shape hex wrenches.Boring bar hole size is 3/4. 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.
On the 0-100 dial, the boring head's travel is 0. 0005 in radius movement, 0.
Boring head thread is 11/2-18. Minimum bore diameter is 0. Maximum bore diameter is 7. Maximum bore depth is 3. We guarantee against any defective or misrepresented products.