SP-49 KNOB ASSY INGCO (RH150028) H-26

🧰 What It Is

The Knob Assembly is a user‑accessible control component on the RH150028 rotary hammer. It typically consists of a knob (rotating/turning dial or handle) with its mounting hardware (shaft, screws, washer, and possibly an internal detent) that allows the operator to adjust or select a setting on the tool.

In rotary hammers, knobs are most often used for functions such as:

• Mode selection (e.g., drilling only, hammering only, or hammer‑drill combination)

• Depth or force adjustment (on models that allow it)

• Locking/engaging specific mechanical positions

Because it’s listed as an assembly, the part includes both the external turning knob and the internal components needed to secure it to the tool and interact with the internal mechanism.

⚙️ Technical Function

The knob assembly provides:

✔ Mechanical interface for user control

✔ Positive detents or indexed positions so the knob stays in the chosen setting

✔ Torque input from the user to the internal selector or mechanism

✔ Visual and tactile feedback of the current tool setting

In the RH150028, the knob assembly often interacts with internal detent balls, springs, shafts, or cams to change or lock tool functions.