Pro-Series 4" 1 1/2-18 Boring Head
Bar holder moves freely and smoothly.
Features a .001" direct reading dial screw for maximum accuracy.
Direct reading dial screw.
Design assures superior rigidity for chatter-free boring and precise hole size accuracy.
Made of 20CrMnTi alloy steel with electrolysis nickel coating.
Threaded back for adapting to boring shank.
Hardened & ground.
Diameter of boring is 5/8-25.0.
Tool capacity is up to 1"
Maximum offset is 1-5/8"
Overall head length is 3-1/2".
Boring bar hole size is 1".
Shaft hole diameter is 1".
Our boring heads have three components including the boring head body, the bar holder/insert holder, and the dial screw. The gib tension has been preset at the factory. The gib screws should not be loosened to make size adjustments. These screws are for adjusting the gib. The locking screw is the only screw used for making size changes to the boring head.
Shipping Weight: 9.2 lbs