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SpeTool O Flute CNC Router Bit 1/4 Inch Shank 1 Inch Cutting Length with Extra Long Life Coating Single Flute End Mill for Acrylic Aluminum Wood Cut

  • Based on 273 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Jul 27
Order within 14 hours and 46 minutes
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Size: 1PCS 1/4" Dia-1" CL-1/4" Shank


Features

  • SPECIFICATION. Spiral Router Bits 1" cutting length; 1/4" cutting diameter; 1/4" shank; 2-1/2" overall length, can be used on routers with 1/4" collect;
  • COATING. The new coating provide up to 2.5 times life than the uncoated, make the bit sturdy durable, sharp efficient, smooth stable
  • UNIQUE DESIGN. O-Flute design spiral router bit ensures efficient chip removal, reducing clogging, providing smooth cutting performance, and extending tool life;
  • APPLICABLE MATIARIALS. Suitable for a variety of materials, acrylic, plastic, aluminum, copper, and wood; Used for Carving, Cutting, Slotting, Milling, Hollow Cutting;
  • WIDE APPLICATION. Perfect for CNC routing, hobbyist projects, and sign making with plastic and non-ferrous materials.
  • DURABLE AND PRECISE. Single flute router bits, high-quality construction ensures durability and precision, allowing for consistent and accurate cuts.

Description

For dealing Acrylic Compared to other spiral router bits,O flute router bits dealings are cleaner and deeper. For dealing Aluminum Low melting point material, Single Flute Cutting End Mill is a good option. For dealing Copper Heat is dispersed more easily with the O flute bit,it stops weld back. For dealing Wood Chips up or down varies in spiral direction, larger flute valley allows bigger chips. 1/8" Cutting Dia O flute 1/2" Cutting Dia O flute 1/4" Cutting Dia O flute 1/4" Cutting Dia O flute 1/8" Cutting Dia O flute 1/4" Cutting Dia O flute 5 PCS 1/8" O flute Bits What spiral router bit should I order if I want to engrave a memorial metal coin? Single flute router bit, Ball nose router bit, If you have any question or idea, just leave SpeTool message, SpeTool Professional Service Team will help you. Does this end mill require lubrication for milling brass? Lubrication should help improve surface finish, but shouldn't be necessary. What SpeTool can supply? SpeTool is specialized in manufacturing various cutting tools including CNC router bits, carving and engraving bits, aluminum and metal end mills, grinder burr and other rotary tools for industrial and DIYer. Any question, welcome let us know. Recommended Woodworker Technical Term Feed Rate (IPM) = RPM x # of cutting edges x Chip Load Chip Load = per cutting edge. IPS = Inches Per Second. IPM = Inches Per Minute. RPM = Revolutions Per Minute. # of cutting edges = # of flutes.* About Us SpeTool is specialized in manufacturing various cutting 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. We’re committed to providing high-quality products and services to our customers. If you have any questions, welcome to leave a message. Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store

Size: 1PCS 1/4" Dia-1" CL-1/4" Shank


Material: Carbide


Brand: SpeTool


Cutting Length: 1 Inches


Item Weight: 0.02 Pounds


Size Name: 1PCS 1/4" Dia-1" CL-1/4" Shank


Cutting Length: 1 Inches


Item Weight: 0.02 Pounds


Cutting Diameter: 0.25 Inches


Item Diameter: 0.25 Inches


Cut Type: Up-Cut


Number of Flutes: 1


Material Type: Carbide


Brand Name: SpeTool


Model: SP1F-D1/4-TaC


Part Number: SP1F-D1/4-TaC


Manufacturer: SpeTool


Unit Count: 1.0 Count


Included Components: Plastic Storage Box


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Excellent Quality
Size: 1PCS 1/8" Dia-1/2" CL-1/4" Shank
This worked great. The fine but allowed for detailed engraving. We bought extra just in case, though they lasted much longer than expected. High quality, would definitely buy again.
Reviewed in the United States on December 20, 2025 by TopKat

  • This is exactly what I needed!
Size: 1PCS 1/4" Dia-1" CL-1/4" Shank
I am amazed at how well these bits cut. We recently started cutting thin aluminum sheets on our CNC router (0.025 inches thick). We were having issues with our expensive, name-brand uncoated carbide bits loading up with aluminum and destroying the cut edges of the parts. I did a bit of research and came across mention of TAC coated bits being the best for aluminum. I decided to order one of Spetool's TAC coated 1/4 inch O flute upcut bits to test out. This bit has blown me away. I have never used a bit before that goes through aluminum so easily and cleanly. I have cut hundreds of feet of .025" anodized aluminum with the same bit, as well as some 3/4" MDF. It is still razor sharp with no visible wear on the edge or the coating. I am cutting it on a vacuum table, with no coolant and no air blast. I can grab the bit immediately after cutting up a sheet and the bit is cool to the touch. The large o-shaped flute never clogs and the surface of the bit is so smooth and slippery that not even painter's tape will stick to it when I run through a strip of it. I am running the 1/4 inch bit at 15,000 RPM and feeding at 60 inches per minute, step cutting parts out in two equal passes and have had no issues whatsoever. I'm sure it can go faster, but I did not want to push it on a project close to deadline. Oh, and it's about a third of the price of the bits we normally buy. Buy this bit. You will be happy that you did. ... show more
Reviewed in the United States on January 9, 2025 by Nick M.

  • Tough to beat for the price.
Size: 5PCS 1/4" Dia-1" CL-1/4" Shank
A great single flute cutter for the money. I'm using it lightly for now, 1" DOC, .005 per flute at 7k RPM around a the outside of a 2-1/4" piece of round stock. Does a nice job and the final cut yields a diameter that matches G-code program with in a couple tenths. Will buy again!
Reviewed in the United States on January 3, 2026 by David

  • Works Great for the Price!
Size: 1PCS 1/8" Dia-3/4" CL-1/4" Shank
This has been a great bit so far. I own a parking lot striping business and sometimes need to cut some stencils because I cannot wait on shipping sometimes. So far, this bit has been working great. I cannot speak on the longevity as I have only used it to cut 7 stencils, but time will tell. I am cutting 1/8" thick HDPE in the video in one pass. ... show more
Reviewed in the United States on March 25, 2024 by DIY & Reviews With Bill

  • Tip broke immediately
Size: 1PCS 1/16" Dia-3/8" CL-1/4" Shank
Bit broke within a couple minutes of use. Was trying to cut through 1/8” clear cast acrylic. 45 ipm feed rate, 30 ipm plunge, 16,000 rpm, .02 step down. Needed the bit to cut out plexiglass with some fine detail. Broke immediately upon start up of CNC. Wasted $30. Bought a well known named brand same size bit, ran the same settings it ran for 1.5 hours and completed the job. You get what you pay for. ... show more
Reviewed in the United States on September 5, 2025 by scott zukeran

  • The right tool for the job!
Size: 1PCS 1/8" Dia-1/2" CL-1/4" Shank
Used this to cut a pick guard with my CNC for an electric guitar. It worked well and I didn't have any burning which was an issue with a standard end mill bit. Right tool for the job!
Reviewed in the United States on November 17, 2025 by deMontaigne

  • Cnc zero flute UHMW! Clean cut!
Size: 1PCS 1/4" Dia-1" CL-1/4" Shank
I had been using end mills and switched to this for uhwm & other plastics. It cuts clean and allowed me up my feed and speed love the Spe bits
Reviewed in the United States on February 20, 2026 by Kim Caldart

  • Good bit but undersized 2.86mm / 0.1125in
Size: 1PCS 1/8" Dia-1/2" CL-1/4" Shank
The bit/coating are fine but as other reviews say the 1/8" bit is definitely undersized. I'll keep it but in the future I think I'll stick with the more expensive brands that actually give you the size they claim.
Reviewed in the United States on June 17, 2026 by Jessica

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