Solid Carbide CNC Spiral 'O' Flute, Plastic Cutting Up-Cut & Down-Cut Router Bits

Priced From $20.21 - $101.96
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Free shipping on orders $35 and up
Grouped product items
D Flute d B L Rotation Description Brand Tool No. Our Price Wish list Ready to Buy
1/4 1 1/4 3/4 2 Upcut nACo Ceramic Coating Amana Tool 51404-K
$49.95
$37.46
Qty:
1/4 1 1/4 1-1/16 3 Upcut - Amana Tool 51409
$52.50
$39.38
Qty:
1/4 1 1/4 1 2-1/2 Upcut - Amana Tool 51405
$49.95
$37.46
Qty:
5mm 1 6mm 16mm 64mm Upcut - Amana Tool 57321
$39.95
$29.96
Qty:
1/16 1 1/4 1/4 2 Upcut - Amana Tool 51441
$41.55
$31.16
Qty:
1/2 1 1/2 1-5/8 3-1/2 Upcut - Amana Tool 51428
$122.95
$92.21
Qty:
1/4 1 1/4 1-1/4 3 Downcut nACo Ceramic Coating Amana Tool 51507-K
$64.95
$48.71
Qty:
1/8 1 1/4 1/2 2 Downcut - Amana Tool 51511
$41.55
$31.16
Qty:
5mm 1 6mm 16mm 64mm Downcut - Amana Tool 57332
$39.95
$29.96
Qty:
1/4 1 1/4 3/4 2-1/2 Downcut - Amana Tool 51524
$40.95
$30.71
Qty:
1/16 1 1/8 1/4 2 Upcut - Amana Tool 51415
$30.50
$22.88
Qty:
4mm 1 6mm 20mm 64mm Downcut - Amana Tool 57331
$39.95
$29.96
Qty:
3/8 1 3/8 5/8 2-1/2 Upcut - Amana Tool 51429
$69.95
$52.46
Qty:
1/16 1 1/8 1/4 2 Downcut - Amana Tool 51515
$35.35
$26.51
Qty:
8mm 1 8mm 38mm 76mm Upcut - Amana Tool 57326
$54.95
$41.21
Qty:
6mm 1 6mm 12mm 64mm Upcut - Amana Tool 57324
$43.95
$32.96
Qty:
1/4 1 1/4 1-1/2 3 Downcut - Amana Tool 51513
$52.50
$39.38
Qty:
1/8 1 1/4 5/16 1-1/2 Downcut - Amana Tool 51523
$39.95
$29.96
Qty:
6mm 1 6mm 38mm 76mm Downcut - Amana Tool 57334
$59.95
$44.96
Qty:
6mm 1 6mm 20mm 64mm Upcut - Amana Tool 51495
$46.95
$35.21
Qty:
1/16 1 1/8 1/4 2 Upcut nACo Ceramic Coating Amana Tool 51415-K
$36.95
$27.71
Qty:
4mm 1 4mm 20mm 64mm Upcut - Amana Tool 57318
$39.95
$29.96
Qty:
3/8 1 3/8 3/4 3 Upcut - Amana Tool 51426
$65.95
$49.46
Qty:
1/4 1 1/4 3/4 2 Downcut - Amana Tool 51504
$39.95
$29.96
Qty:
1/8 1 1/4 1/2 2 Downcut nACo Ceramic Coating Amana Tool 51511-K
$47.95
$35.96
Qty:
1/4 1 1/4 1-1/4 3 Downcut - Amana Tool 51507
$52.50
$39.38
Qty:
2mm 1 2mm 8mm 50mm Upcut - Amana Tool 57310
$26.95
$20.21
Qty:
3/16 1 3/16 3/8 2 Upcut - Amana Tool 51448
$33.75
$25.31
Qty:
1/4 1 1/4 1-3/8 3 Upcut - Amana Tool 51403
$52.50
$39.38
Qty:
1/4 1 1/4 3/4 2-1/2 Downcut nACo Ceramic Coating Amana Tool 51524-K
$52.95
$39.71
Qty:
1/4 1 1/4 1-1/2 3 Upcut - Amana Tool 51413
$52.50
$39.38
Qty:
3/8 1 3/8 3/8 3 Upcut - Amana Tool 51641
$69.95
$52.46
Qty:
6mm 1 6mm 16mm 63mm Upcut - Amana Tool 51638
$45.95
$34.46
Qty:
3/16 1 1/4 1-1/4 3 Upcut - Amana Tool 51418
$56.95
$42.71
Qty:
10mm 1 10mm 30mm 76mm Upcut - Amana Tool 57327
$69.95
$52.46
Qty:
12mm 1 12mm 38mm 76mm Upcut - Amana Tool 57329
$115.50
$86.63
Qty:
3/16 1 1/4 5/8 2 Downcut - Amana Tool 51517
$42.60
$31.95
Qty:
1/8 1 1/4 3/4 2-1/2 Upcut nACo Ceramic Coating Amana Tool 51446-K
$52.95
$39.71
Qty:
6mm 1 6mm 8mm 64mm Upcut - Amana Tool 57323
$41.95
$31.46
Qty:
3mm 1 3mm 12mm 64mm Upcut - Amana Tool 51491
$56.70
$42.53
Qty:
1/8 1 1/4 1/2 2 Upcut nACo Ceramic Coating Amana Tool 51411-K
$47.95
$35.96
Qty:
3mm 1 6mm 8mm 64mm Upcut - Amana Tool 57315
$44.95
$33.71
Qty:
1/8 1 1/4 3/4 2-1/2 Upcut - Amana Tool 51446
$44.70
$33.53
Qty:
1/8 1 1/8 1/2 2 Downcut - Amana Tool 51510
$33.95
$25.46
Qty:
1/2 1 1/2 1-3/8 3-1/2 Upcut - Amana Tool 51644
$119.95
$89.96
Qty:
1/4 1 1/4 1 2-1/2 Downcut - Amana Tool 51505
$51.50
$38.63
Qty:
3mm 1 6mm 12mm 64mm Downcut - Amana Tool 57330
$50.85
$38.14
Qty:
1/8 1 1/4 5/8 2-1/2 Upcut - Amana Tool 51445
$41.55
$31.16
Qty:
7/32 1 1/4 3/4 2-1/2 Upcut - Amana Tool 51424
$37.95
$28.46
Qty:
1/4 1 1/4 1-1/4 3 Upcut nACo Ceramic Coating Amana Tool 51407-K
$64.95
$48.71
Qty:
3/16 1 1/4 7/8 2-1/2 Upcut - Amana Tool 51442
$49.95
$37.46
Qty:
1/8 1 1/8 3/4 2 Upcut - Amana Tool 51437
$43.30
$32.48
Qty:
4mm 1 4mm 12mm 64mm Upcut - Amana Tool 51636
$39.95
$29.96
Qty:
1/8 1 1/4 1/4 2 Upcut - Amana Tool 51416
$38.40
$28.80
Qty:
1/2 1 1/2 1-1/4 3 Upcut - Amana Tool 51645
$104.95
$78.71
Qty:
3mm - 6mm 12mm 50mm - - Amana Tool 51526
$49.95
$37.46
Qty:
5/32 1 1/4 9/16 2 Downcut - Amana Tool 51516
$39.85
$29.89
Qty:
8mm 1 8mm 38mm 76mm Downcut - Amana Tool 57336
$55.95
$41.96
Qty:
6mm 1 6mm 30mm 76mm Downcut - Amana Tool 57333
$56.95
$42.71
Qty:
3/8 1 3/8 3/4 3 Downcut - Amana Tool 51509
$69.95
$52.46
Qty:
1/16 1 1/4 1/4 2 Upcut nACo Ceramic Coating Amana Tool 51441-K
$49.95
$37.46
Qty:
2mm 1 6mm 8mm 64mm Upcut - Amana Tool 57311
$49.95
$37.46
Qty:
6mm 1 6mm 30mm 75mm Upcut - Amana Tool 51497
$56.95
$42.71
Qty:
3/16 1 3/16 5/8 2 Upcut - Amana Tool 51412
$35.95
$26.96
Qty:
1/8 1 1/8 1/2 2 Upcut - Amana Tool 51410
$39.95
$29.96
Qty:
4mm 1 6mm 20mm 64mm Upcut - Amana Tool 57319
$39.95
$29.96
Qty:
3/8 1 3/8 1-5/8 3-1/2 Upcut - Amana Tool 51427
$75.50
$56.63
Qty:
1/4 1 1/4 3/4 2 Downcut nACo Ceramic Coating Amana Tool 51504-K
$49.95
$37.46
Qty:
1/8 1 1/4 1/2 2 Upcut - Amana Tool 51411
$41.55
$31.16
Qty:
2.5mm 1 2.5mm 8mm 50mm Upcut - Amana Tool 57312
$26.95
$20.21
Qty:
3/16 1 1/4 3/8 2 Upcut - Amana Tool 51449
$38.45
$28.84
Qty:
1/4 1 1/4 3/4 2-1/2 Upcut - Amana Tool 51421
$40.95
$30.71
Qty:
1/4 1 1/4 1 2-1/2 Downcut nACo Ceramic Coating Amana Tool 51505-K
$57.95
$43.46
Qty:
3/8 1 3/8 1-1/8 3 Upcut - Amana Tool 51414
$69.95
$52.46
Qty:
3/8 1 3/8 3/8 3 Downcut - Amana Tool 51528
$69.95
$52.46
Qty:
2mm 1 3mm 6mm 50mm Upcut - Amana Tool 51634
$39.95
$29.96
Qty:
1/4 1 1/4 5/8 2 Upcut - Amana Tool 51419
$39.10
$29.33
Qty:
10mm 1 10mm 35mm 76mm Upcut - Amana Tool 57328
$72.95
$54.71
Qty:
8mm 1 8mm 25mm 64mm Downcut - Amana Tool 57335
$49.95
$37.46
Qty:
1/4 1 1/4 3/8 2 Downcut - Amana Tool 51519
$34.00
$25.50
Qty:
3/16 1 1/4 5/8 2 Upcut nACo Ceramic Coating Amana Tool 51417-K
$51.95
$38.96
Qty:
8mm 1 8mm 25mm 64mm Upcut - Amana Tool 57325
$49.95
$37.46
Qty:
5mm 1 5mm 16mm 64mm Upcut - Amana Tool 51493
$58.80
$44.10
Qty:
1/4 1 1/4 1 2-1/2 Upcut nACo Ceramic Coating Amana Tool 51405-K
$57.95
$43.46
Qty:
4mm 1 4mm 8mm 64mm Upcut - Amana Tool 57317
$39.50
$29.63
Qty:
1/4 1 1/4 3/8 2 Upcut - Amana Tool 51425
$34.00
$25.50
Qty:
3/16 1 3/16 5/8 2 Downcut - Amana Tool 51512
$39.95
$29.96
Qty:
1/8 1 1/8 1/2 2 Downcut nACo Ceramic Coating Amana Tool 51510-K
$39.95
$29.96
Qty:
1/4 1 1/4 1-1/4 3 Upcut - Amana Tool 51407
$52.50
$39.38
Qty:
5mm 1 5mm 30mm 64mm Upcut - Amana Tool 57322
$42.95
$32.21
Qty:
5/32 1 1/4 9/16 2 Upcut - Amana Tool 51447
$39.85
$29.89
Qty:
1/8 1 1/8 5/16 2 Upcut - Amana Tool 51453
$29.95
$22.46
Qty:
3/8 1 3/8 1-5/8 3-1/2 Upcut nACo Ceramic Coating Amana Tool 51427-K
$89.95
$67.46
Qty:
1/4 1 1/4 7/8 2-1/2 Upcut - Amana Tool 51444
$42.95
$32.21
Qty:
1/4 1 1/4 2-1/4 3-3/4 Upcut - Amana Tool 51646
$77.95
$58.46
Qty:
6mm 1 6mm 38mm 75mm Upcut - Amana Tool 51499
$62.50
$46.88
Qty:
3/16 1 1/4 5/8 2 Upcut - Amana Tool 51417
$42.60
$31.95
Qty:
1/2 1 1/2 2 4 Upcut - Amana Tool 51648
$135.95
$101.96
Qty:
3/16 1 1/4 5/8 2-1/2 Upcut - Amana Tool 51423
$44.50
$33.38
Qty:
3/16 1 3/16 3/8 2 Downcut - Amana Tool 51518
$33.75
$25.31
Qty:
3mm 1 3mm 8mm 50mm Upcut - Amana Tool 57314
$27.10
$20.33
Qty:
3/8 1 3/8 1-1/8 3 Downcut - Amana Tool 51514
$69.95
$52.46
Qty:
1/8 1 1/8 1/2 2 Upcut nACo Ceramic Coating Amana Tool 51410-K
$39.95
$29.96
Qty:
2.5mm 1 6mm 8mm 64mm Upcut - Amana Tool 57313
$44.95
$33.71
Qty:
1/8 1 1/8 1/4 2 Upcut - Amana Tool 51443
$30.95
$23.21
Qty:
1/4 1 1/4 3/4 2 Upcut - Amana Tool 51404
$39.95
$29.96
Qty:

spektra miniTool numbers ending with "-K" are coated with Spektra™ Extreme Tool Life Coating

To be used only on CNC machines and routers with automatic feeding. Solid carbide Spiral 'O' flute plastic cutting router bits use the highest quality sub-micrograin carbide, have a special proprietary edge processing system and feature a super high polished cutting edge with a unique “mirror finish”, resulting in clean cuts, superior surface finish and a longer tool life. The Spiral ‘O’ flute sharpening/finishing process increases feed rates, allowing for more linear feet routed in less time.

These bits are specifically designed for a variety CNC machining applications and a long list (see below) of materials. Continuous improvements in cutting performance, the unique carbide polishing process, tool design & geometry make these router bits perfect for routing signs and displays. Signmaking (signcrafter) router bits were originally developed in Europe specifically for professional sign makers. Corrugated plastic products, such as Correx boards are used in a variety of applications including boat building, packaging, signage, outdoor advertising, and the production of pet cages. Today, CNC routers have become the tool of choice for sign makers, moving beyond printers and vinyl cutters.

Benefits of Mirror-Finish:

  • Industrial quality
  • Single flute design
  • Super high flute mirror finish results in better cut quality
  • Dissipates heat well and prevents melting
  • Right hand helix/right hand cut
  • Eject chips up or down
  • Longer tool life

Solid carbide Spiral ‘O’ flute plastic cutting router bits produce super-clean cuts in the following materials:

  • Plastic/Acrylic  
  • Acetal and Nylon
  • Acrylic Stone
  • Acrylonitrile Butadiene Styrene (ABS)
  • Aluminum Composite Material (ACM)
  • Alupanel®
  • Corian
  • Coroplast® *
  • Corrugated Plastics such as Correx Boards and Polypropolyene
  • Derlin®
  • Dibond®
  • Extruded Acrylic
  • Foam Board
  • Gatorfoam® **
  • Hard Plastic
  • High Density Polyethylene (HDPE)
  • High Impact Polystyrene (HIPS)
  • High Impact Polystyrene (HIPS) for digital printing
  • King ColorCore® ***
  • Laminate
  • Low Density Polyethylene (LDPE)
  • Lucite
  • Mechanical / Engineered Plastics
  • Plexiglas®
  • Poly (methyl methacrylate) (PMMA)
  • Polycarbonate (Lexan™)
  • Polyethylene Terephthalate Glycol-Modified (PETG / PET-G)
  • Polystyrene (PS)
  • PVC
  • Sintra PVC
  • Solid Surfaces
  • Teflon
  • Thermoplastic Polyolefin (TPO)
  • Ultra High Molecular Weight Polyethylene (UHMWPE)
  • Wood

* Coroplast® is soft plastic cardboard made with super soft, super flexible PVC.
** Gatorfoam® Foam Board, a polystyrene foam board bonded between two layers of Luxcell® wood-fiber veneer.
*** King ColorCore®, The Multi-Color Engravable Polymer Sheet.


saw blade guidelines for safety ATTENTION! 51415 and 51515 reduce RPM & Feed Rates (IPM) by 30-50% to prevent tool breakage due to extremely small diameter (D). These bits are high finish (not mirror finish due to small diameter).

Maximum RPM: 35,000

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