Item Type: Collet Chuck Holder Model: ER16M-150L Material: Chrome-molybdenum alloy steel Optional Chuck Rod Diameter: 10, 12, 16, 20, 25mm Applicable Chuck Model: ER16M Shank Length: Approx. 150mm / 5.9in Package List 1 x Collet Chuck Holder 1.Duetomanualmeasurement,thereareslighterrors,thankyouforyourunderstanding.2.Thecoloroftheproductheadisshippedrandomly.3.Pleasenotethatthenewtypeandoldtypeofthisproductwillbesentrandomly,andmakesureyouwillnotmindbeforeordering. 1Straight and extended shank, suitable for deep processing, which solves the need for deepening processing. 2The nut can direct tighten, high rigidity and strong clamping force. 3It can reduce the use of extension tools, which can reduce costs and improve efficiency. 4Precision manufacturing, high reliability and stability. 5Fine workmanship, good elasticity, high precision. Provides high strength and durability.