This adapter and a drill may be used with the NFPA-certified LokHead Winch Fire/Rescue Kit for human suspension. Likewise, using this adapter, a drill, the Traction Winch 500 and an NFPA-certified descent control device such as the Clutch as a progress capture device will satisfy the requirements of NFPA. Please note that use of a drill and this adapter to move personnel is not compliant with EN13157 which governs only hand-powered machines. Technical Specifications Winch Compatibility – Lokhead Winch – Traction Winch 500– TopCrank Lokhead Rigging Winch 500Dimensions1 7/8 x 1 inWeight 71 g