About this article HIGH TEMPERATURE QUENCHING TREATMENT The drill chuck is made of high-quality steel, which has been treated and heat-treated many times and is durable. HOW DO I CONFIRM MY MODEL? You can measure the maximum diameter of the spindle hole of your own machine to determine the Morse pattern. HOW DO I CONFIRM MY MODEL? You can measure the maximum diameter of the spindle hole of your own machine to determine the Morse pattern. EASY LOADING AND UNLOADINGThe chuck can be operated without tools, without gaps, and the claws are well locked, which is easy to operate. DRILL CHUCK It is suitable for drilling and tapping centers/machining centers CNC.Il has better clamping stability and higher accuracy than ordinary drill chucks.