Makita COLLET NUT RP0900/3608B/3620 - 763615-1

Makita 763615-1 — genuine Makita collet nut for trim and compact routers. Precisely machined metal nut that secures the collet cone to the spindle and clamps router bits reliably; designed to accept Makita collet cones for 6 mm, 8 mm, 6.35 mm (1/4") and 9.53 mm (3/8") tool shanks when used with the corresponding cones.

Fits a range of Makita routers — examples include RT0700C / RT0701C, DRT50/DRT50Z, RP0900K, 3608B and 3620 (also used on M3601 and MT361) — replace the nut by part number 763615-1 to restore secure bit clamping.

Notes for installation: the nut is paired with Makita collet cones (e.g., 763636-3 for 6 mm and 763637-1 for 6.35 mm) and is tightened to compress the cone and collet around the bit. If your tool shows a missing, worn or damaged nut that won’t clamp properly, this genuine Makita 763615-1 restores correct collet engagement and runout control.

Jump straight to the Makita spare parts diagrams:

• Makita 3620 Parts
• Makita M3601 Parts
• Makita RT0700C Parts