Fein 30762412990 — Speed control switch (electronic module) rated 100–230 V, 50/60 Hz for Fein oscillating MultiMaster tools FMM 250.

Restores variable-speed operation and on/off control for machines that have lost speed regulation; the part is sold individually and is the original Fein speed-control module used in affected tools.

Example fitment: commonly used in Fein MultiMaster/FMM250 series oscillating tools (other MultiMaster models that use the same control assembly : FMT 250 / BLK 1.6 / BLK 1.3 / BLS 2.5 and BSS 1.6).

This genuine Fein spare parts item is a direct replacement designed to bring back smooth, adjustable-speed performance — a straightforward repair for anyone replacing a worn or failed switch in their oscillating tool; it’s a standard item among power tool parts for restoring variable-speed function.