Guide · Trim routers for CNC use

Trim routers for CNC: Makita RT0701C, DeWalt DWP611 and Carbide 3D

Body size, collet and stated speed for the Makita RT0701C, DeWalt DWP611, Carbide 3D Compact Routers and Sienci AutoSpin, as each maker lists them.

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Short answer

Pick the router your machine's mount and maker name first, then check the collet you need. FoxAlien and Sienci pair the Makita RT0701C with 65 mm mounts; the DeWalt DWP611 is labeled 69 or 71 mm depending on the holder maker; Carbide 3D's Compact Router has a 65 mm body and its own collets, while its ER-11 sibling takes standard ER11 collets.

Makita RT0701C

  • Labeled 1-1/4 HP maximum horsepower, with a variable no-load speed of 10,000 to 30,000 RPM.[1]
  • A corded router with a 1/4 in collet, listed at 3.9 lb and 7-7/8 in overall with the fixed base.[1]
  • The 1/4 in collet is part 763637-1, supplied with a trimmer base, straight guide and two spanner wrenches.[1]
  • Sienci says the Makita RT0700/RT0701 is the router it has thoroughly tested on the LongMill, whose standard mount has a 65 mm bore.[2]

DeWalt DWP611

DeWalt markets the DWP611 as a "1-1/4 HP MAX" compact router, at 7 amps and corded.[3] Its page lists 27,000 rpm and an extended 8-slot 1/4 in collet.[3] The page gives no low-end speed, so we do not state a full range.

For the mount, see DeWalt DWP611: 69 mm or 71 mm: makers label it both ways.

Carbide 3D Compact Router and ER-11 Compact Router

Carbide 3D's Compact Router has a 65 mm body, a stated speed range of 12,000 to 30,000 RPM and a 120 V US plug. It ships with a 1/4 in factory collet plus a 1/4 and 1/8 in precision collet set.[4]

The ER-11 Compact Router uses standard ER11 collets, ships with 1/4 and 1/8 in ER11 collets plus nut and wrench, and lists a 1/4 in maximum cutter shank.[5] Our Carbide router comparison covers which collets fit which.

Sienci AutoSpin

Sienci's AutoSpin uses ER11 collets for tooling up to 1/4 in and has a 64.8 mm body that Sienci says fits 65 mm router mounts.[6] Sienci also states it has no noise advantage over the Makita RT0701C at the same RPM.[6]

What some machines ship with

Genmitsu lists the 4040-PRO MAX with a 65 mm spindle mount and a 710 W compact router supplied with ER11 collets.[7]

Side by side

RouterBody or mount size statedColletSpeed as stated
Makita RT0701C65 mm mounts (FoxAlien, Sienci)1/4 in, Makita 763637-110,000-30,000 RPM no-load
DeWalt DWP61169 mm (FoxAlien, Carbide 3D) or 71 mm (Sienci)1/4 in, 8-slot27,000 rpm (no low end stated)
Carbide 3D Compact Router65 mm body1/4 in factory; 1/4 and 1/8 in precision12,000-30,000 RPM
Carbide 3D ER-11 Compact RouterNot stated in our sourceER11, 1/4 in max12,000-30,000 RPM
Sienci AutoSpin64.8 mm, fits 65 mm mounts (Sienci)ER11, up to 1/4 inNot stated

Can a trim router use 1/8 in bits? Only with a collet for that size: Carbide 3D ships 1/8 in collets with both Compact Routers. Never clamp a bit in a collet that is not made for its shank.

A 65 mm-class router

Picks that fit3 products

Choose the RT0701C with the fixed base and the 1/4 in collet cone; it needs a 65 mm mount.

More on choosing

The RT0701CX3 is the same router as a kit with plunge, tilt and offset bases, if you also want to rout by hand. The 763637-1 collet is the spare 1/4 in cone Makita lists for the RT0701C, not an ER collet. On Amazon, check that Ships from / Sold by is Amazon.com or Makita.

  • Makita RT0701C 1‑1/4 HP compact router, fixed base (65 mm class, 1/4 in collet)

  • Makita RT0701CX3 1‑1/4 HP compact router kit (RT0701C with fixed, plunge, tilt and offset bases)

  • Makita 763637‑1 1/4 in collet cone for the RT0701C and RT0700C

Holders for these routers

Genmitsu's aluminum holder for the 4040-PRO family comes in 65 mm, with the Makita RT0700C as its example, and 69 mm, with the DeWalt DWP611 as its example.[8] FoxAlien's 69 mm XE-Ultra clamp is for the XE-Ultra 8080 and XE-Ultra Core only, because its standard clamp does not fit that machine.[9]

Picks that fit3 products

Match the holder to your router and your machine. Genmitsu 101-63-ZC65 for a 65 mm router such as the Makita, or 101-63-ZC69 for a DWP611, on the 4040-PRO family; the FoxAlien XE-Ultra clamp only on the XE-Ultra 8080 or Core.

More on choosing

On Amazon, check that Ships from / Sold by is Amazon.com or the brand.

Next

Questions

Which trim router fits a 65 mm mount?

FoxAlien and Sienci pair the Makita RT0701C with 65 mm mounts, Carbide 3D gives its Compact Router a 65 mm body, and Sienci says its 64.8 mm AutoSpin fits 65 mm mounts.[2][4][6]

Can a trim router use 1/8 in bits?

Only with a collet made for 1/8 in. Carbide 3D ships 1/8 in collets with both its Compact Router and its ER-11 Compact Router; the Makita RT0701C's listed collet is 1/4 in.[4][5][1]

Which router does my machine maker support?

Ask your machine's maker. Sienci, for example, says the Makita RT0700/RT0701 is the router it has thoroughly tested on the LongMill.[2]

What is the DWP611's speed range?

DeWalt's page lists 27,000 rpm but no low-end speed, so we do not state a full range.[3]

Sources and changes

  1. RT0701C 1-1/4 HP* Compact Router (Makita U.S.A.) · Manufacturer · US product page for Makita RT0701C (specifications, included items, related accessories) · checked 11 Oct 2026
  2. LongMill MK2 Routers and Spindles (Sienci Labs) · Official documentation · Sienci resources page on routers and spindles for LongMill MK2 · checked 11 Oct 2026
  3. 1-1/4 HP MAX* Torque Variable Speed Compact Router (DWP611) (DeWalt) · Manufacturer · US product page for DeWalt DWP611 · checked 11 Oct 2026
  4. Carbide Compact Router (Carbide 3D) · Manufacturer · Carbide Compact Router (proprietary-collet model) specifications and contents · checked 11 Oct 2026
  5. ER-11 Compact Router (Carbide 3D) · Manufacturer · Carbide ER-11 Compact Router specifications and compatibility FAQ · checked 11 Oct 2026
  6. AutoSpin (Sienci Labs) · Manufacturer · Sienci AutoSpin T1 collet, body and noise statements · checked 11 Oct 2026
  7. Genmitsu 4040-PRO MAX CNC Machine (SainSmart (Genmitsu)) · Manufacturer · 4040-PRO MAX product page · checked 11 Oct 2026
  8. Genmitsu 65-69mm Aluminum Spindle Holder Z-Axis Mount (SainSmart (Genmitsu)) · Manufacturer · SKU 101-63-ZC65 / ZC69 holder for 4040-PRO family and Aluminum Z Axis Assembly V2 · checked 11 Oct 2026
  9. Z Clamp for 4040-XE CNC Router compatible with DeWalt DWP611 or Makita (FoxAlien) · Manufacturer · FoxAlien 65/69 mm Z clamp, SKU CNC-ACC-Clamp65 · checked 11 Oct 2026
  • : First published.

Next editorial review due 10 Jan 2027.