Milwaukee M18 FUEL Oscillating Multi-Tool 2836-20: problems, parts and running costs

Checked: 2026-10-16

Summary

The 2836-20 is a top-tier cordless multi-tool with independently verified cutting speed and low vibration, but the threaded-bolt blade change is slower than most tool-free systems and OPEN-LOK is not compatible with Starlock-only accessories. Running cost is blades and sanding sheets consumed as used, and value is strongest for buyers already on M18 batteries.

Common problems and fixes

Polarizing blade-change verdict — one Reddit owner calls the change quick and reassuring that the blade is set, so the mechanism is disliked by some and accepted by others. [5]
Starlock incompatibility — the OPEN-LOK anchor is universal-fit across 100+ multi-tools but is not compatible with Starlock-only accessories, and at least one 2026 comparison table mislabels the tool as Starlock. [8] [16]
No long-term failure data — no source documents motor, gear-case or blade-lever failure rates, and Consumer Reports tested only the brushed 2626-20 predecessor. [9]
Price confusion — a $149 figure printed in a 2026 comparison belongs to the Ridgid winner, not the Milwaukee; live retailers list $249-299 bare. [4] [7] [11]

Parts and consumables

OPEN-LOK universal-fit blades (consumable) — the required interface; Milwaukee lists a 15-piece OPEN-LOK blade set. [12] [16]
Starlock-only accessory packs — not compatible with this tool; buy OPEN-LOK or universal-fit blades instead. [16]

Yearly running cost

Not enough data. Blades and sanding sheets are consumed as used, M18 batteries are shared with other tools, and no annual cost estimate is given in the sources.

When it is a good buy

At $149 or less the 2836 becomes hard to beat on performance, though that figure is the Ridgid winner’s price, not the Milwaukee’s. [4] At the $249 street price (Northern Tool, Acme Tools, October 2026) it is competitive for M18 owners and finished runner-up in Pro Tool Reviews’ 2026 shootout. [4] [7] [11] At $299 or more, or for buyers new to M18, the all-in cost with battery and charger passes $400 and the Ridgid R86242 (96 points, $149 bare) deserves a hard look. [4] [8] Alternatives: the Ridgid R86242 for value, the Flex FX4111 (90 points, $169 bare) for a lower price, and the Makita XMT04 for the best vibration score. [4]