Key benefits - Delivers high accuracy for milling and drilling with ER32 collets - Wide collet range supports common tool sizes from 1/8 to 3/4 inch - ER32 clamping range 1-20 mm for versatile toolholding - Secure tool retention with 1/2-20 inch imperial draw bar threads - Constructed from high grade alloy steel for durability and toughness - Tolerance of 0.0005 inch to minimize runout and improve workpiece quality Specifications - Collet Range: 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 inch - ER32 clamping range: 1-20 mm - Imperial draw bar threads: 1/2-20 - Accuracy: 0.0005 inch Material - High grade alloy steel Applications - For professionals and hobbyists requiring accurate milling and drilling Use scenarios - Use on a milling machine to hold ER32 end mills for precision milling of aluminum or steel parts - Use on a drill press or milling machine to drill and machine with 1/8 to 3/4 inch collets for accurate hole dimensions - Ideal for small batch production or prototype work where consistent tool holding and low runout are important