Original Fein Stiftschlüssel — part number 62907037003 — a small, purpose-made pin spanner/Allen key for working on Fein oscillating multi-tools. It gives secure engagement for the tool’s retaining pin and fasteners so you can tighten or release blade/adapter hardware with confidence.

Key detail: the engagement/opening is 6 mm, sized to match the pin/hex points used on Fein MultiMaster/MultiTalent tool heads. Perfect to have when handling Fein spare parts or doing an in-place repair where correct fit matters.

Example models it’s known to fit (representative): Fein MultiMaster FMM 250 / FMT 250 series, MSXe 636 II and other MultiMaster variants that use the same pin/retaining fastener design. If your tool is a MultiMaster/MultiTalent with the standard Fein blade-retaining hardware, this original Fein key is the right accessory to carry.