New Ingersoll Rand Tune Up Kit For Models 3940 & 3942, Part # 3940-TK1. This tune-up kit will give you everything you need to rebuild your Impact gun and have it perform like new, including bearings.

Country/Region of Manufacture: United States
Manufacturer Part Number: 3940-TK1, IR3940, IR3942, 3940, 3942, 9991
Brand: Microcut
Warranty: No