Features 1、Used for quick setting of CNC machine tools, with high strength and hardness, durable and practical. 2、Made of hardened tool steel, can be used upright, and the through hole allows processing long parts. 3、For parallel, square or hexadecimal shapes and 60°, 90° or 120° cross hole drilling. 4、The product with small size, easy to carry and store, convenient to use and with good performance. 5、With great workmanship, perfect replacement for the old one and has a long service life. Specification Item Type: Hex Chuck Block Material: Hard steel Specification: ER32 Color: Silver + black Purpose: Used for CNC car surface engraving machine Size: Approx. 50mm / 2in 25mm / 1in 65mm / 2.6in 45mm / 1.8in Package List 1 x Chuck Block