Features RUST-RESISTANT MATERIAL: The chuck shaft is made of excellent manganese steel material, surface blackening treatment, possesses high rust resistance, high hardness and long service life. EASY REMOVAL: The chuck chuck allows for quick and easy installation and removal, saving you time when switching between applications. WIDE APPLICATION: This high precision drill chuck is widely used in tapping machines, drilling machines, milling machines, drilling machines, pneumatic tools, etc. THREAD SPECIFICATION: This drill chuck arbor is a hardened morse taper MT2 adapter with MT2 shank to 3/8in-24 thread, useful and practical. EXCELLENT PERFORMANCE: The drill chuck shaft adapter is made with fine workmanship, owns compact appearance and stable performance, can ensure durability and stability. Specification: Item Type: Drill Chuck. Model number: MT2-3/8-24 Material: manganese steel Crank: MT2 Connection mode: screw Package list: 1 x drill chuck 1 storage box Package List 1 x Drill Chuck Arbor 1 x Storage Box