Makita 157306-8 Gear Housing For HR3850K 19mm A/F Rotary Hammer

157306-8 is a genuine replacement gear housing (also referred to as a gear casing) specifically engineered for heavy-duty rotary hammer drills, such as HR3850K 19mm A/F Rotary Hammer 110v & 240v

It serves as the protective shell and structural support for a tool's internal gears, shielding the internal transmission and gears from dust, debris, and external impacts, providing a rigid framework to keep internal moving parts aligned during high-vibration drilling and demolition tasks.