Screw Cutting Attachment

Makes it possible to cut either inch or metric threads on any Sherline lathe. Includes 4" handwheel for maximum control, engagement lever, set of 15 change gears, hardware and instructions. Allows 36 different inch thread pitches from 80 TPI down to 5 TPI or 28 metric thread pitches from .25 to 2.0mm to be cut at any diameter. Eliminates the need to purchase odd-sized taps and dies for special threads.