Chrome finish for maximum durability. Tap sizes: M3-0.5, M4-0.7, M5-0.8, M6-1.0, M8-1.25. Usage: For M3-M8 taps. The head is fully adjustable to fit all metric sized taps and the tool is fully reversible via the ratchet switch. The handle is adjustable and removable, ideal for avoiding nearby obstacles and making threading easier in awkward areas. Ratcheting and T-handle tap wrenches Three-position gear housing for easy fast and efficient ratcheting action, a sliding handle with spring-loaded tap, can be extended in either direction for extra strength. Metric tap wrench M3-M8 (86mm long body x 86mm wide) 100mm handle) for easy switching from left to right hand or locked for ratchetless use Designed for use with taps and can also be used on left hand taps, reamers, screw extractors and other square shank tools. T-Handle Ratchet Tap Holder Wrench with 5pcs M3-M8 Easy switch from left to right or locked for ratchet-free use. Function: T-Handle Ratchet Wrenches Three-position gear box for fast and efficient ratcheting action, sliding handle with spring-tension tap, and can be extended full length in either direction for more lever.