4 in 1 Multifunctional Steel Drills Chuck Key Fit Handheld Drilling Tool 4 Way Chuck Key-4 in 1 Multifunctional Steel Drills Chuck Key Fit Handheld Drilling Tool 4 Way Chuck Key-Precision Crafted: This 4-way chuck key is the perfect tool for unlocking and locking various popular drill chucks to hold drill bits in place; Each wrench is made of heat-treated steel with a black oxide finish for the optimum combination of durability and hardness. Ingenuity Design: This 4 in 1 drill chuck key is your only tool needed for locking and unlocking the drill. Allows you to keep your drill bits firmly in place for tough jobs. Helps secure drill bits in hammer drills and is also universal for many other types of drills. The small key allows for easy storage and use. Excellent Practicability: Ideal for the DIYer who needs to keep their drill bits firmly locked in their drill press. Ideal for home improvement needs, do it yourself projects and large construction projects. Ideal for use with hammer drills where a tight fit is required. Also allows a quick change of your drill heads. Invincible Setup: Crafted from strong metal and finished with durable paint, this chuck key will be able to withstand any job you can throw at it. Each side is finely crafted for precise fits with its corresponding drill size. Size: 7.5*7.5cm