Part Number: N454251. Package Includes: as images show. 1 Chuck Keyless. Fit to DeWALT DCD991B (Type 1) 20v Prem 3-Sp Bare,DCD991P2 (Type 1) 20v 3-Speed Dril/Drv,DCD991M2 (Type 1) 20-Volt Max Xr Cordless Brushless Premium 3-Speed Drill Power Tool. Compatible with: DCD996B (Type 1) 20v Xr Prem 3-Sp Hd,DCD996M2 (Type 1) 20v Xr Pre 3-Sp Kit,DCD996M2V (Type 1) 20v 3-Speed Hammerdr,DCD996P2 (Type 1) 20v 3-Speed Hammerd Kit,DCD996B (Type 2) Cordless Drill/Driver Power Tool,DCD996P2 (Type 2) Cordless Drill/Driver Power Tool. It replaces for Dewalt DCD997P2BT (Type 1) 20v Mx Xr 3sp Hammerdrill Power Tool. Note: It is not replace for DCD999 DCD998B DCD998W1 N747286.It is different. Note: It is not replace for DCD999 .It is different. A brand-new, unused, unopened, undamaged item in its original packaging.