Spoilboard Flattening Bit

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SpeTool insert surfacing router bit shown at an angle SpeTool insert surfacing bit with dimension labels and a rebated wood sample
SpeTool CA W05001 Insert Mini Surfacing & Rabbeting Flycutter 2+2 Flute Design 1" Diameter x 1/4" Shank Router Bit
$66.88 CAD $69.60 CAD
56 reviews
SpeTool spoilboard surfacing router bit with screw-mounted cutting inserts. SpeTool surfacing router bit with dimension labels and a stepped wood illustration.
SpeTool CA W05004 Insert Mini Surfacing & Rabbeting Flycutter 2+2 Flute Design 1-1/4" Diameter x 1/4" Shank Router Bit
$78.49 CAD
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SpeTool wide surfacing router bit with screw-mounted cutting inserts. SpeTool surfacing router bit dimension diagram with a cutting insert and stepped wood illustration.
SpeTool CA W05010 Insert Surfacing & Rabbeting Flycutter 2+2 Flute Design 3" Diameter x 1/2" Shank Router Bit
$101.20 CAD
11 reviews
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Square replacement cutting inserts arranged in a blue storage tray. Square replacement cutting inserts in a blue tray with two inserts displayed in front.
SpeTool CA O01002 10 Pcs Solid Carbide 4 Cutting Edges Insert Replacement Knife MDF, Chipboard, Solid Surface 10 x 10 x 2.2mm x 30 Deg
$34.07 CAD
Square cutting inserts arranged in a blue storage tray. Square cutting inserts in a blue tray with two loose inserts in front.
SpeTool CA O01001 10 Pcs Solid Carbide 4 Cutting Edges Insert Replacement Knife MDF, Chipboard, Solid Surface 12 x 12 x 2.2mm x 35 Deg
$41.30 CAD
SpeTool insert spoilboard surfacing router bit shown at an angle SpeTool insert surfacing bit with dimension labels and a rebated wood sample
SpeTool CA W05003 CNC Spoilboard Insert Carbide 4 Wing, Surfacing, Planing, Flycutting & Slab Leveler 2-1/2" Diameter x 1/2" Shank Router Bit
$87.78 CAD
102 reviews
Surfacing router bit with cutting inserts shown upright. Surfacing router bit dimension diagram beside a routed wooden profile.
SpeTool CA W05002 CNC Spoilboard Insert Carbide 3 Wing, Surfacing, Planing, Flycutting & Slab Leveler 2" Diameter x 1/2" Shank Router Bit
$61.95 CAD
SpeTool O04001 10PCS M4x7 Screw Replacements for Spoilboard Surfacing Router Bit SpeTool O04001: close-up of a replacement insert screw showing its recessed head
SpeTool CA O04001 10PCS M4x7 Screw Replacements for Spoilboard Surfacing Router Bit
$10.17 CAD
Square cutting inserts in a blue storage tray, with two inserts displayed in front. Angled view of square cutting inserts in a blue storage tray.
SpeTool CA O01004 10 Pcs ATS Coated Solid Carbide 4 Cutting Edges Insert Replacement Knife MDF, Chipboard, Solid Surface 12 x 12 x 2.2mm x 35 Deg
$43.70 CAD
1 review
SpeTool: square replacement inserts in a blue storage tray with two inserts displayed in front SpeTool: ten square replacement cutting inserts arranged in a blue storage tray
SpeTool CA O01008 10 Pcs ATS Coated Solid Carbide 4 Cutting Edges Insert Replacement Knife MDF, Chipboard, Solid Surface 10 x 10 x 2.2mm x 30 Deg
$45.43 CAD
Surfacing router bit with gold-colored cutting inserts. SpeTool: four-wing surfacing router bit and square insert with dimension arrows
SpeTool CA W05003 CNC Spoilboard ATS Coated Insert Carbide 4 Wing, Surfacing, Planing, Flycutting & Slab Leveler 2-1/2" Diameter x 1/2" Shank Router Bit
$91.49 CAD
102 reviews
SpeTool W05002 ATS 3-wing spoilboard surfacing router bit, 2-inch diameter (product image) SpeTool: three-wing surfacing router bit and square insert with dimension arrows
SpeTool CA W05002 CNC Spoilboard ATS Coated Insert Carbide 3 Wing, Surfacing, Planing, Flycutting & Slab Leveler 2" Diameter x 1/2" Shank Router Bit
$67.11 CAD
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SpeTool ATS Coated Insert 2+2 1" Dia 1/4" Shank Surfacing Router Bit SpeTool: mini surfacing router bit and replacement insert with dimension arrows
SpeTool CA W05001 ATS Coated Insert Mini Surfacing & Rabbeting Flycutter 2+2 Flute Design 1" Diameter x 1/4" Shank Router Bit
$72.28 CAD $75.56 CAD
SpeTool ATS Coated 2+2 1.25 Dia 1/4" Shank Surfacing Planer Router Bit SpeTool insert surfacing bit and insert dimension diagram beside a routed wood sample
SpeTool CA W05004 ATS Coated Insert Mini Surfacing & Rabbeting Flycutter 2+2 Flute Design 1-1/4" Diameter x 1/4" Shank Router Bit
$82.88 CAD
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SpeTool Spoilboard Surfacing Router Bit 1/4" Shank Carbide Insert Slab SpeTool: mini surfacing router bit and replacement insert with dimension arrows
SpeTool CA W05011 CNC Insert Mini Spoilboard Surfacing, Rabbeting, Flycutter, Slab Leveler & Surface Planer 1" Diameter x 1/4" Shank Router Bit x 2-1/4" Long
$55.67 CAD
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SpeTool 2+2 Flute ATS Coated Insert 3" Dia 1/2" Shank Flattening Bits SpeTool: surfacing router bit and replacement insert with dimension arrows
SpeTool CA W05010 ATS Coated Insert Surfacing & Rabbeting Flycutter 2+2 Flute Design 3" Diameter x 1/2" Shank Router Bit
$106.15 CAD $112.60 CAD
11 reviews
Surfacing router bit with screw-fastened cutting inserts. Surfacing router bit dimension diagram with a cutting-insert detail and shaped wood example.
SpeTool CA W05014 Slab Flattening Router Bit 1/2" Shank 3-1/4" Cutting Diamter 5 Wings Insert Carbide Spoilboard Surfacing Planing Router Bit CNC Planer Woodworking
$120.69 CAD
SpeTool: mini surfacing router bit with a hex key and spare gold-coloured inserts SpeTool: mini surfacing router bit and replacement insert with dimension arrows
SpeTool CA W05004 1-1/4 Inch Spoilboard Surfacing Router Bit, 1/4 Inch Shank, 2+2 Flute with Replaceable Carbide Inserts, ATS Coated Slab Flattening Bit
$92.94 CAD
SpeTool: four-wing surfacing router bit with a hex key and spare gold-coloured inserts SpeTool: four-wing surfacing router bit and square insert with dimension arrows
SpeTool CA W05003 1/2" Shank 2-1/2" Diameter 4-Wing CNC Spoilboard Surfacing Router Bit with 4 Extra Coated Carbide Inserts
$103.27 CAD
SpeTool: three-wing surfacing router bit with a hex key and spare inserts SpeTool: three-wing surfacing router bit and square insert with dimension arrows
SpeTool CA W05002 3-Wing CNC Spoilboard Surfacing Router Bit, 1/2" Shank, 2" Cutting Diameter, Carbide Insert Slab Flattening Planer Bit with 3 Extra Blades
$77.45 CAD
Surfacing router bit with visible cutting inserts and mounting screws. SpeTool: four-wing surfacing router bit and replacement insert with dimension arrows
SpeTool CA W05003 2.5-Inch Spoilboard Surfacing Router Bit 1/2" Shank, 4-Wing Flattening Planer Bit for Wood Slab, CNC, MDF and Plywood
$101.26 CAD
SpeTool: mini surfacing router bit with a hex key and spare square inserts SpeTool: mini surfacing router bit and replacement insert with dimension arrows
SpeTool CA W05001 2+2 Flute Spoilboard Surfacing Router Bit with 1/4" Shank, 1" Cutting Diameter, Includes 4 Carbide Inserts for CNC and Woodworking
$82.62 CAD
SpeTool: insert surfacing router bit with a hex key and spare square inserts SpeTool: surfacing router bit and replacement insert with dimension arrows
SpeTool CA W05004 Surfacing & Rabbeting Flycutter 2+2 Flute Design 1-1/4" Diameter x 1/4" Shank Router Bit & 4 Additional Carbide Inserts
$86.75 CAD
SpeTool: four-wing surfacing router bit with a hex key and spare inserts SpeTool: four-wing surfacing router bit and replacement insert with dimension arrows
SpeTool CA W05003 2.5-Inch Spoilboard Surfacing Router Bit with 4 Carbide Inserts, 1/2" Shank, 4-Wing Flattening Planer Bit for Wood Slab, CNC, MDF and Plywood
$99.14 CAD

Spoilboard Surfacing and Slab Flattening Router Bits

Compare SpeTool surfacing router bits for spoilboard leveling and wood slab flattening. Choose a cutter for your CNC or router sled by checking its shank size, cutting diameter, insert style and the requirements of your machine.

How to Choose a Flattening Bit

  • Shank and machine fit: match the exact shank size to the correct collet and check the machine manufacturer's limits.
  • Cutting diameter: compare coverage with the available clearance in your router base or sled. A larger cutter is not automatically the right choice for every setup.
  • Cutting edges and inserts: check the product page for the cutter design and the exact replacement insert model before ordering spares.
  • Application: distinguish leveling a CNC spoilboard from flattening a slab with a router sled, and follow the setup instructions for your equipment.

Complete Your Slab-Flattening Setup

Explore router sled systems and router sled accessories alongside the cutters in this collection. Check the individual product page for current specifications, included items and compatible replacement parts.