Features OXIDANT RESISTANT MATERIAL --- Drill chuck arbor is made of excellent manganese steel material, surface quenching blackening treatment, possess high oxidation resistance, high hardness, long service life EASY REMOVAL --- Drill chuck mandrel allows quick and easy installation and removal, saving you time when switching between applications WIDE APPLICABLE --- This high accuracy drill chuck mandrel is widely used in tapping machine, drilling machine, milling machine, boring machine, pneumatic tools, etc. THREAD SPECIFICATION --- This drill chuck arbor is a MT2 shank to 3/8in‑24 threaded hardened morse taper MT2 adapter, useful and practical EXCELLENT PERFORMANCE --- Drill chuck arbor adapter is made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability Specification: Item Type: Drill Chuck Arbor Model Number: MT2-3/8-24 Material: Manganese steel Connecting Rod: MT2 Connection Mode: Screw Package List:1 x Drill Chuck Arbor 1 x Storage Box Package List 1 x Drill Chuck Arbor 1 x Storage Box