Chrome finish for maximum durability. Size of taps: M3-0.5, M4-0.7, M5-0.8, M6-1.0, M8-1.25. Use: For M3-M8 taps. The head is fully adjustable to fit all metric sized taps and the tool is fully adjustable via the ratchet switch. The handle is adjustable and removable, ideal for avoiding nearby obstacles and making threading easier in awkward areas. Ratchet 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 added strength. Metric M3-M8 tap wrench (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. Number of pieces supplied: 1 set (6 pieces) lucky meet Note: The data is all measured manually, please allow 1-3cm error, due to the light and display difference, it there will be a certain color difference, the actual object received shall prevail.