Makita part JM23100051 — Limited (locking) knob, genuine Makita replacement designed to restore the original angle/stop locking on compatible Makita slide/compound mitre saws. This small but critical control replaces a worn, broken or missing knob that holds mitre, bevel or limit-stop settings securely so cuts stay accurate and repeatable.

Key details:

- Manufacturer part number: JM23100051 (Limited Knob / Limited Pin style locking knob).

- Function: secures and locks adjustment points (mitre/bevel/limit stop) to prevent slipping during cutting; installs in the same location and with the same fit as the original knob on the saw.

- Fit / example models: commonly listed for Makita LS1018L (255mm slide compound mitre saw) and related slide/compound models such as LS0815F/LS0815FL, LS1017L and some LS1815 listings — check your saw’s parts diagram to confirm exact placement.

- Shape/handling: positive-grip knob intended for confident hand tightening and repeatable settings; supplied individually as the replacement part.

Why this part matters: a worn or missing locking knob causes settings to slip or shift during cuts, producing inaccurate results; replacing it with the original Makita JM23100051 restores factory fit, feel and reliable locking of the adjustment.

Simple install — typically swaps in with basic hand tools and minimal disassembly; use your tool’s parts breakdown to confirm the knob location and orientation before installation.

(Part number and model fit information above are taken from Makita parts listings; confirm against your saw’s parts diagram or service manual for exact compatibility.)

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