SpeTool Spiral Router Bits Down Cut 1/4 inch Cutting Diameter, 1/4 inch Shank Solid Carbide CNC Bits End Mill for Wood Cut Carving Engraver

(0 Reviews)

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$15.59

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(20000 available )

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21 Ratings
16
4
1
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Reviews
  • Eric

    > 3 day

    Very good tool, have used it on approximately 100 ft of pine to trim out my boat.

  • Jack Beery

    Greater than one week

    I was cutting a 1/32 inch deep 10.5 inch diameter circles in ¼ inch plywood to position a second part and the cut was not clean. Purchased this spiral router bits with down cut and it cleaned up the cuts beautifully. Two factors sharp bit and spiral router bit with down cut. All directions of the grain on the wood without a problem. Needed this tool for this job.

  • Stephen Talkington

    Greater than one week

    I bought this end mill for use in my cnc machine exclusively for wood milling. I use mainly bits from amana tools but occasional buy an off brand bit to try out and was pleased with how this bit has continued to cut decently after many hours. I dont think it cuts as clean as a high end bit, but its so close that Ill be buying more of these in the future.

  • Robocop519

    > 3 day

    Great quality on a cnc router bit, using particle board with melamine,

  • Crmstrong1

    > 3 day

    This was purchased for cutting a radius through laminate plastic glued to MDF board used for shop made table saw miter sled. The down spiral cut left a very smooth, clean edge in the thin plastic, exactly as desired. It also left a clean, smooth edge on the MDF and a plastic liner glued to the underside as the surface contacting the table saw. If interested, this highly accurate miter build is illustrated by the designer on YouTube. Search for Making a Super Accurate Miter Gauge.

  • todd heath

    > 3 day

    I run lots of different bits and this brand is one I can for the most part count on as being a decent bit. Not the best but not the worst brand. I have had pretty good luck with the brand but have had a few that didn’t last very long or just not up for the job. They are not super expensive but not cheap ether. With so many choices I can usually count on them. If i am doing a big job or something that is really precise i don’t use them I will use a brand I trust a bit more. Not saying this is a bad brand.

  • Mark B Jones II

    > 3 day

    Been using this bit now for three months straight. I bought this one because it was cheaper than some other brand name options and didnt want to ruin a good bit due to my inexperience. This bit hasnt given me a reason to change yet. Cuts are baby smooth through any hardwood i throw at it!

  • Jeffrey Sgrignoli

    08-06-2025

    Down cutting bit. Very clean cut. This bit is very clean cutting and doesn’t leave a rough edge when doing cut outs on the cnc.

  • Patricia J. Duffett

    Greater than one week

    First time user of this product. Seems to work fine for my applications cutting wood and foam. Very sharp so use caution handling with bare hands.

  • James Golden

    11-06-2025

    Spe and amana bits are all that I use now. Great quality on these bits! This is the one I use for roughing out my cnc parts

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Difference Between Down-Cut,UP-Cut and Compression Bit

DOWN CUTDOWN CUT

UP CUTUP CUT

compressioncompression

Down-Cut Bit

  • Down-cut bit leaves a clean top edge but a rough bottom edge
  • It is great for cutting shallow dados, rabbets, and visible slots. When cutting dados or grooves with a down cut bit, be sure to slow the feed rate to allow more time for chip removal

UP-Cut Bit

  • Up-cut bit leaves a smooth bottom edge but a rough top edge
  • The up cut is better at evacuating chips, Ideal for mortise and tenons, grooving, slotting or routing deep blind holes. It performs faster cutting while pulling the chips up.

Compression Bit

  • Compression bit cut both top and bottom cleanly, Its spiral action pulls both sides into the center of the bit where it ejects out of the side.
  • Through cuts in harwoods, softwoods, plywood, melamine, and other veneers
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SpeTool Spiral Router Bit

  • Made of superior carbide according to strict Industrial grade quality standards.
  • Provide a long cutting life, strong durability and a high quality finish
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About SpeTool

SpeTool specialized in manufacturing various tools including CNC router bits, carving and engraving bits, aluminum and metal end mills, grinder burr and other rotary tools, for industrial and DIY applications. SpeTool each bit is manufactured strictly accordance with industrial quality standards. We are committed to improve our product through improved production techniques , strict quality control, customer feedback and extensive field testing

1/4 DOWN 1/4 UP 1/4L DOWN 1/4L UP 1/4 COM 14 Compression bit
1/4 Down Cut 1/4 Up Cut 1/4 Extra Long Down Cut 1/4 Extra Long Up Cut 1/4 Compression 1/4 Compression-1/10 UP Cut
Cutting Diameter 1/4" 1/4" 1/4" 1/4" 1/4" 1/4"
Shank Diameter 1/4" 1/4" 1/4" 1/4" 1/4" 1/4"
Cutting Length 1" 1" 1-1/4" 1-1/4" 1" 1"
Total Length 2-1/2" 2-1/2" 3" 3" 2-1/2" 2-1/2"
UpCut Length 1/4" 1/10"

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