3 Wing Slot Cutter Router Bits by MLCS

Cut 1/2" Deep Slots

See Options Below

Shop with Confidence. Our GUARANTEE.

Three wing carbide tipped with 8 mm (approximately 5/16") bore, and 1-7/8" large diameter. Cuts 1/2" deep when used with our arbor and bearing. To reduce depth of cut, use larger bearings.

  • Use for cutting slots (kerfs).
  • Use for shiplap joints, tongue and groove joints, T-moldings, rabbeting, etc.

Available as individual cutter or complete assembly with arbor and bearing. See chart.

Calculating Bearing OD for Your Desired Depth of Cut

To determine the proper bearing, use the following formula:
Bearing Outer Diameter = Large Diameter of Bit minus (2x Desired Cut Depth)

Router Safety Chart - Suggested Speeds:

Bit Diameter Max Speed
up to 1" 24000 RPM
1-1/16" to 2" 18000 RPM
2-1/16" to 2-1/2" 16000 RPM
2-9/16" to 3" 14500 RPM
over 3" 12000 RPM

Router Safety Tips:

  • Always wear eye and ear protection.
  • Always use properly sharpened bits.
  • Never use bits that are dull or damaged.
  • Shank must be completely inserted into collet and then backed-off approximately 1/16".
  • Don't "bottom-out" bit in collet.
  • Never partially insert bit into collet. Minimum 1" of shank needs to be in collet.
  • Tighten bit securely and recheck periodically for possible slippage or "run-out" due to wear.
  • Keep collet clean and replace if worn.
  • Never start the router with the bit in contact with wood.
  • Always feed your work or router in the proper direction against the bit rotation.
  • Don't force feed the bit or overload your router, Feed at a constant moving speed to avoid burning the wood.
  • Do not face tool's discharge when operating.
  • Always unplug router when changing bits or making adjustments.
  • Use a router table and fence whenever possible.
  • Make sure your work piece is properly secured and use push blocks, sticks and featherboards whenever possible.
  • Keep all your bits, bearings and assemblies clean, lubricated, and securely fastened. To avoid damage, store them properly in a pouch, box or tray.
  • The bigger the bit, the lower RPM recommended (see chart).

Product Options

Type Cutter Width Shank Size Item # Price    Qty
Cutter Only 1/16" -- 301 $13.95
Cutter Only 5/64" -- 303 $13.95
Cutter Only 3/32" -- 304 $13.95
Cutter Only 1/8" -- 305 $15.95
Cutter Only 5/32" -- 306 $15.95
Cutter Only 3/16" -- 307 $15.95
Cutter Only 5.2mm -- 309 $15.95
Cutter Only 1/4" -- 308 $15.95
Cutter Only 5/16" -- 310 $15.95
Complete Assembly 1/16" 1/4" 5341 $19.95
Complete Assembly 5/64" 1/4" 5343 $19.95
Complete Assembly 3/32" 1/4" 5344 $19.95
Complete Assembly 1/8" 1/4" 5345 $22.95
Complete Assembly 5/32" 1/4" 5346 $22.95
Complete Assembly 3/16" 1/4" 5347 $22.95
Complete Assembly 5.2mm 1/4" 5349 $22.95
Complete Assembly 1/4" 1/4" 5348 $22.95
Complete Assembly 5/16" 1/4" 5350 $22.95
Complete Assembly 1/16" 1/2" 7641 $19.95
Complete Assembly 5/64" 1/2" 7643 $19.95
Complete Assembly 3/32" 1/2" 7644 $19.95
Complete Assembly 1/8" 1/2" 7645 $22.95
Complete Assembly 5/32" 1/2" 7646 $22.95
Complete Assembly 3/16" 1/2" 7647 $22.95
Complete Assembly 5.2mm 1/2" 7649 $22.95
Complete Assembly 1/4" 1/2" 7648 $22.95
Complete Assembly 5/16" 1/2" 7650 $22.95
5/16" Arbor and Bearing Set 1/4" Shank 318 $10.00
5/16" Arbor and Bearing Set 1/2" Shank 319 $10.00
Sign up for our eNewsletter