HIGH QUALITY- The mini rotary drill chuck is made of carbon steel, hard and durable, accurate precision and stable performance for long-lasting and trouble-free use. EASY TO USE- Key format chuck that uses the rotation of the chuck, allowing for more efficient and precise adjustment. Make it easy to use. DETAIL SIZE- Total length of the drill chuck: approx. 16cm/6.3inch, key length: approx. 8.2cm/3.2inch. EXCELLENT DESIGN - Excellent waterproof and dustproof performance ensures that the internal components are not damaged by chargers and effectively extends the service life. WIDE APPLICATION- This rotary drill chuck is perfect for power drill, suitable for centering, drilling, tapping, reaming. MK2 carbide taper shank drill chuck B16 / 1-13 mm Made of carbon steel, strong and durable. Chuck key style chuck, easy to use. Precise precision, stable performance. Makes you better and more efficient in processing the products. Perfect for drill presses,suitable for centering, drilling, tapping and reaming. Material: Carbon Steel Color: Black, Silver Total length: Approx. 11 cm Key Length: Approx. 65mm Weight: Approx. 872 g