Thank you for your inquiry. This chuck is not for the Hammer Drill. Please refer to the following link to see the Hammer Drill replacement chuck.

https://rentaltoolsonline.com/hammer-drill-replacement-chuck-kit-p-141176.htm

Hello Mark,

The following outlines warranty coverage on Nemo tools and accessories.

1-year warranty on parts that degrade normally with frequent use, including:

V2 Drill/Impact Tools Li-ion Batteries
O-rings and Gaskets
Li-ion Battery Charger
Air Pump
Tool Leash
Impact Tools Internal Impact Mechanism


3-year warranty on factory faults and specific products and equipment, including:

Any obvious factory fault such as a missing component, incorrect assembly, and physical aberrations in materials/parts.
Full warranty (excluding corrosion) on the tool carrying case


Their warranty does not cover failures caused by improper use or care:
Over discharging of Li-po batteries. (Please see instructions on the proper use of and care for Li-po batteries.)
Paint job scrapes and chipping
Chucks and corrosion (Please see instructions on avoiding corrosion.)
Burnt out motors and controllers due to stalling (Stalling or working out of the water for prolonged periods of time may damage the tools.)
Flooded tools due to improper pressurizing (Properly pressurized tools cannot flood. Please follow the pressurization instructions carefully.)
Drill bits, brushes and other consumables