For Large Diameter Unified Screw Type Q for UN Inner Diameter Unified Screw

For internally threaded unified screws.

[Features]
· For thread cutting deep, large diameter holes.
· With neck thinly processed and an oil hole, it is suitable for screw-cutting deep holes of medium to thick diameters.
· Stable processing without causing chatter is possible.
· Deep hole drilling can be performed with one pass.
· Blade length is shorter, so cutting resistance decreases.
· Able to thread long blade lengths of up to 3D