NT40 3.3″ Head Offset Boring Tool Set ~Rugged construction for smooth and chatter-free boring. ~ Heat treated parts made from SCM steel. ~Feeding quantity cutting will proceed 0.0008″ at every scale of 0.0004″. ~ Set comes complete with boring head, boring shank, boring bars, adapters and L-shape hex wrenches. ~ Dial on head has 0.0005″ graduation for accurate hole sizing.~ Fitted durable carry case included. Heat treated parts made from SCM steel. Rugged construction for smooth and chatter-free boring. Feeding quantity cutting will proceed 0.0008″ at every scale of 0.0004″. Set comes complete with boring head, boring shank, boring bars, adapters and L-shape hex wrenches. Dial on head has 0.0005″ graduation for accurate hole sizing.








