Product Details Features: 3X FASTER THAN RUNNING NUTS BY HAND† - Revolutionize your productivity with this attachment that is 3X faster than running nuts by hand. POWERFUL LIFT CAPACITY - Tackle tough jobs with hardened steel gears that provide a lifting capacity of up to 100 lbs. MAXIMIZE ACCESSIBILITY - Rotate 360º for accessibility in tight spaces. APPLICATION VERSATILITY - Take on a wide range of applications with 7 compatible nut sizes and 4 compatible rod sizes including 3/8 in. standard and heavy, 1/2 in. standard and heavy, 1/4 in. standard and heavy, and 5/8 in. standard (1/4 in. and 5/8 in. sizes sold separately). QUICK-CHANGE BRACE – Attach in seconds to go from driving screws to running nuts. MULTI-BRAND COMPATIBILITY– Works with DEWALT 20V MAX and select other pro-grade 18V Impact Drivers. LIMIT FATIGUE - Leverage the power of your impact driver to reduce fatigue when completing tough repetitive tasks. MAXIMIZE EFFICIENCY - Save time with an integrated reset feature that brings the attachment back to the open position and offers quick access to trapped nuts on multi-level or trapeze systems. Applications: For use with threaded rod and hex nuts. Includes: (1) DWANRRIR Nut Runner (4) Inserts: 9/16", 11/16", 3/4", 7/8" (1) Brace Bracket