DEWALT 20V MAX POWER DETECT XR 1/2In Hammer Drill/Driver & Impact Driver Kit DCK299D1W1 from DEWALT - Acme Tools
DeWalt DW997 Repair - iFixit
DEWALT PART No.N454251 Keyless Chuck, Hardened Body fit for DCD991,992, 996, 997 | eBay
DEWALT XR POWER DETECT 1/2-in 20-volt Max-Amp Variable Speed Brushless Hybrid Cordless and Corded Hammer Drill (1-Battery Included) in the Hammer Drills department at Lowes.com
2 DeWALT Cordless Drill Transmission 380264 380264-13SV DW996/997/998 for sale online | eBay