About This 4 IN 1 DRILL PRESS CHUCK KEY - Hakkin 4-in-1 chuck key wrench features four common sizes (1/4”, 3/8”, 1/2”, 3/4”) in a compact design, making it easy to tighten and loosen chucks on drills and drill presses without swapping tools EXCELLENT QUALITY - Hakkin drill chuck keys are made of solid carbon steel for durability and hardness, smoothly polishing surface treatment, coated with wear resistant rubber, comfortable to grip DUAL-PURPOSE SQUARE HOLE DESIGN&EXQUISITE WORKMANSHIP - The square hole acts as both a chuck key and an emergency wrench, saving time and effort during drilling, screwing, or mechanical adjustments. Hakkin chuck key surface polishing smooth without burr, comfortable grip, rotation and tightening more effortless IDEAL FOR DIY & PROFESSIONAL USE - Ultra-lightweight design fits easily in pockets or toolboxes, perfect for contractors, diyers, and home repairs—no more bulky tools slowing you down STAINLESS STEEL WIRE RINGS PERFECT FOR HANGING TOOL BAG - The drill chuck wrench can be suspended in the tool bag with a steel wire ring, which is convenient to carry and can be taken out for use at any time during work, improving work efficiency Overview Brand : Hakkin Material : Alloy Steel Included Components : Wrench Manufacturer : Hakkin