Adjustable Tap Wrench Handle For 1/4"-3/4" (unc/unf) / M5-m20 Taps, Tap Reamer Tapping Wrench Hand Tool With Plastic Dipped Handle Tap Wrench Size: Fit tap size: 1/4"-3/4" (UNC/UNF) / M5-M20 (Metric). Black oxide coating for good abrasion resistance and rust protection. Hardened carbon steel sliding block for high hardness and strength.Wide Applications: Hand tap wrench can clamp various taps for tapping operations. It also can be used with drills, reamers, screw extractors and other small tools that need to be rotated manually.Features: Tap wrench has 1 rigid handle and 1 adjustable handle that adjusts the jaws to clamp tools easily and firmly. Straight tap wrench provides great leverage, and is specially suitable for larger-diameter taps.Easy To Use: Operates with both hands to rotate the tap wrench in a certain direction to process, repair and clean the internal thread. Plastic dipped handle provides firm and comfortable grip in use when exposed to fluid or moisture.Tips: The force of both hands must be even when operating the tap wrench. The wrench and the tap should form an angle of 90 degrees, and the tap and the threaded bottom hole are perpendicular to each other.