SpeTool insert surfacing router bit shown at an angle
SpeTool insert surfacing bit with dimension labels and a rebated wood sample
SpeTool insert surfacing bit with insert-removal and rotation illustrations
SpeTool surfacing bit chart showing machine types and example workpiece materials
SpeTool surfacing router bit mounted on a router sled above wood
SpeTool insert surfacing bit mounted in a CNC spindle
Comparison chart of cutting inserts and their illustrated profiles

SpeTool UK W05004 Insert Mini Surfacing & Rabbeting Flycutter 2+2 Flute Design 1-1/4" Diameter x 1/4" Shank Router Bit

SKU: UK-IP2F-1-1/4-D1/4-RE
£58.68 GBP

Shipping calculated at checkout

Spoilboard Surfacing Router Bits are built for fast, smooth, and precise flattening of CNC spoilboards, slabs, and large wood surfaces. With ultra-sharp carbide inserts and a durable body, they deliver clean cuts, extend tool life, and reduce sanding—perfect for keeping your CNC bed true and ready for accurate machining.

Excellent For Cutting:

  • MDF
  • Chipboard
  • Hardwood
  • Plastic
  • Plywood
  • Fiberboard
  • Softwood
  • Acrylic

TOOL SPECS: ¼" shank, 1-¼" (31.75 mm) cutting diameter, 2+2 flute design with 10×10×2.2 mm four-edge carbide inserts for precise surfacing.

FAST & EFFICIENT: Dual main cutters quickly remove material, while twin up-shear scorers smooth the surface in fewer passes.
15 in stock
Quantity:
Buy Any 3 Router Bits, Get 1 Pack of Sanding Discs FREESimply add 3 router bits and 1 pack of sanding discs to your cart. While Supplies Last.
Stack of blue sanding discs with dust-extraction holes beside a SpeTool box.
SpeTool UK 5 Inch Sanding Discs, 60 PCS 8-Hole Hook and Loop Sandpaper, 7 Grit Types (80/120/180/240/320/400/Assorted), Ceramic & Aluminum Oxide for Random Orbital Sander
£17.75 GBP
SpeTool P80 blue mesh sanding discs with packaging and a pad protector
SpeTool UK 5 Inch Sanding Disc Net Grits 30 Pieces Mesh Sandpaper Discs, Dustless Hook and Loop Design for Wood, Drywall, Matel Processing
£18.52 GBP
SpeTool blue sanding discs in assorted grits with packaging and a perforated pad protector
SpeTool UK Net Sanding Disc, Anti-Blocking 6 Inch Sanding Discs with Sander Pad Saver,Grits 80/120/180/240/320/400, Dust-Free Ceramic & Aluminum Oxide Net Sandpaper for Wood, Metal, Drywall, Epoxy
£21.61 GBP
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Free shipping
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Smooth starts with the right bit.
Flattenning planer router bit SpeTool

Industrial strength. Woodworker approved.
SpeTool insert surfacing router bit held horizontally in a spindle

From rough to refined—fast.
Flattenning planer router bit SpeTool

More cut. Less time. No compromise.

Similar Size

Part No.

Cutting Dia.
(D)

Shank Dia.
(d)

Overall Length
(L)

Flute
(F)

 Coating Repl. Blades
 		Rec. RPM
W05001 1" 1/4" 1-4/5" 2+2 O01002 18,000
*W05002-ATS 2" 1/2" 2-1/5" 3 ATS O01004 18,000
*W05003-ATS 2-1/2" 1/2" 2-4/5" 4 ATS O01004 18,000
W05004 1-1/4" 1/4" 2" 2+2 O01002 18,000
*W05004-ATS 1-1/4" 1/4" 2" 2+2 ATS O01008 18,000
W05005 35mm 8mm 75mm 3 O01003 18,000
W05010 3" 1/2" 2-5/6" 2+2 O01001 18,000

*Customized sizes are acceptable

Frequently Asked Questions

Designed for leveling and cleaning the sacrificial spoilboard on CNC tables or router sleds. Wide diameter and multiple flutes ensure efficient flattening.

A ½" shank offers greater rigidity and less vibration compared to thinner shanks.

Replaceable insert bits (like Amana's with 4-sided knives) offer better longevity—cheaper over time versus replacing entire bits.

Absolutely—surfacing bits perform flat surfacing much faster than small end mills, significantly reducing runtimes.

Yes—but may still require sanding afterward for full smoothness.

Community reports describe dust clouds on “cosmic scales”—strong dust collection is essential.

Routers with 2¼ HP+, ½" collet, variable speed, and soft start are preferred. Examples: Porter-Cable 890, Bosch 1617 EVS.

Some recommend raising spoilboard height or using a shorter sled to compensate.

Yes—take shallow passes, reduce RPM, and keep bit moving to avoid burning.

Use appropriate feed/fine passes and larger diameter bits; users reported no ridges on 5×8’ table using 2.5" bit.