Description
Overview
Speed-control trigger switch for cordless impact wrenches and drills, rated 25A. Two builds are listed, 3125F at 15V DC and 3125C at 24V DC, for KaSheng KIW800 and Debond CGW-3125C / CGW-3125F on the 5718-Li-20S platform.
Specifications
- Models: 3125F-15V DC 25A, 3125C-24V DC 25A
- Current: 25A
- Voltage: 15V DC or 24V DC, build specific
- Function: variable speed trigger
- Fitment: KaSheng KIW800, Debond CGW-3125C / CGW-3125F
Purpose
Cordless wrenches lose trigger feel before the motor or gearbox gives out, so the pack and drive stay in service. Two voltage builds exist because the trigger’s control side matches the battery, not the tool size.
Applications
- Impact wrench trigger repair
- Drill speed control replacement
- Speed control on 15V and 24V wrench builds
- Fleet upkeep of shared workshop guns
How to Use
- Read the pack voltage off the battery label and pick that build.
- Pull the battery before opening the housing.
- Note the terminals and linkage before lifting the old switch out.
- Seat the new switch, reconnect the leads, check the trigger returns.
- Caution: rated 25A; exceeding it or fitting the wrong voltage build can destroy the switch and the tool’s circuit.









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