This N911109 gear is an original-style replacement part specially designed for DCH172 and DCH172H rotary hammer drills. It helps restore proper operation, impact strength and drilling performance, making it ideal for both professional technicians and DIY repair projects.
Manufactured from durable, wear‑resistant metal to withstand high torque and continuous heavy-duty use. The robust construction helps reduce deformation, gear wear and breakage, extending the overall service life of your power tool.
The precision-machined gear teeth provide smooth power transmission and reliable impact output. By replacing worn or damaged gears, you can reduce abnormal noise and power loss, effectively improving drilling efficiency and working comfort.
This gear is suitable for routine maintenance, professional refurbishment and after-sales repair of for rotary hammer drills. It is a cost-effective solution for restoring performance without having to replace the entire tool, helping save for time and maintenance costs.
Designed to match the original structure for straightforward disassembly and installation. For safety and best performance, it is recommended to install the gear following your tool's service manual or by a qualified technician.

Color: As Shown
Material: Metal

Package Contents:
1*Gear

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.