1/2-20UNF 2-13mm Professional Heavy Duty Quick Change Keyless Drill Chuck

1/2-20UNF 2-13mm Professional Heavy Duty Quick Change Keyless Drill Chuck Features: Easily lock onto and release drill bits. Instantly convert the impact driver to hold non-quick changing drill and driver bits. Keyless chuck finger-tightens for easy bit changes. Unlimited use in the automotives garages warehouses offices homes etc. Keyless chuck drill drive accessory. Keyless drill chuck screwdriver impact driver adaptor. The drill bits are of unique patented locking function traditional locking methods ratchet teeth on the back and the locking pieces mounted on the rear sleeve so they are more efficient in preventing occasions of loosing off during the work and making the clamp support tools more reliably. Unique torque thrust bearing is easy to handle and applied to greater clamping force. Use ordinary drill bits with your SDS drill. The adaptor simply fits into SDS drill as a drill bit does. Specifications: Capacity Range: about 2 x 13mm / 0.08 x 0.51in Material: mainly metal Package Weight: 309g / 10.90ounce Item