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SpeTool

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

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Arrives Sunday, Sep 13
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Size: 1/4" Dia - 1" CL


Style: DOWN CUT


Features

  • SPECIFICATIONSolid Carbide down cut router bits with 1/4inch shank and 1/4inch cutting diameter, 1 inch cutting length, 2-1/2 inch for total length , can be used on routers with 1/4" collect
  • DOWN CUTSpiral CNC bits used for smoothly downcut groove and slots, Mortises, Cycles and dados leave with clean edge and top surface, better than straight bits
  • DURABLE & PRECISESpeTool Downcut router bits are high-quality construction ensures durability and precision, allowing for consistent and accurate cuts
  • COMPATIBILITYThis 1/4 router bit set is perfect for soft woods, hard woods, Plywood, laminate, OAK, MDF and any hardwood working. It can be used with cnc router and handheld router with 1/4" collet
  • 2 FLUTESSpiral Bit Design allows for efficient chip removal, reducing heat buildup, better than straight bits

Description

high-quality carbide router bits for durability and long-lasting performance, providing accurate and clean cuts SpeTool offer various sizes（1/32" 1/16" 1/8" 3/16" 1/4" 3/8" 1/2"） to meet the needs of various woodworking projects Industry-quality standards to deliver precise cuts, ensuring outstanding performance Sharp cutting edge provide efficient precise and smooth routing operations. Utilizes advanced technology to deliver precise results, ensuring your woodworking projects are flawless. Ideal for woodworking projects, DIY crafts, and professional woodworking tasks Down-cut bit leaves a clean top edge but a rough bottom edge，Up-cut bit leaves a smooth bottom edge but a rough top edge，Compression bit cut both top and bottom cleanly Spiral router bits withTAC coating reduces friction, prevents overheating, and extends the tool's lifespan up to 2.5 times life than the uncoated. It also promotes cleaner cuts and smoother finishes, making it ideal for woodworking and machining tasks Down Cut Spiral Rouer Bit 10PCS Coated CNC Bit Set Flush Trim Router Bit Spiral Rouer Bit Set Extra Long Up Cut Extra Long Compression 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.

Size: 1/4" Dia - 1" CL


Material: Carbide


Brand: SpeTool


Cutting Length: 1 inches


Item Weight: 18.14 g


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


Cutting Length: 1 inches


Item Weight: 18.14 g


Cutting Diameter: 0.25 inches


Item Diameter: 0.25 inches


Cut Type: Down-Cut


Number of Flutes: 2


Material Type: Carbide


Brand Name: SpeTool


Unit Count: 1 Count


Included Components: Plastic Storage Box


Manufacturer: SpeTool


Model: SP-D1/4-1/4-D


Part Number: SP-D1/4-1/4-D


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Sep 13

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

    • Pretty good so far, giving nice finish on walnut
Size: 1/4" Dia - 1" CL Style: DOWN CUT
Cuts well and get a really good top surface finish on walnut wood (hobby cnc). Feels like it's already sanded up to 100/120grit. I'm running it fairly slow at 13K rpm, 1000mm/min, 1.5mm stepover, 1mm depth of cut
Reviewed in the United States on May 29, 2026 by RT
    • Did the job.
Size: 1/16" Dia - 1/4" CL Style: DOWN CUT
Bit was perfect for the cost. It did everything I needed it too. Cut was nice.
Reviewed in the United States on December 20, 2025 by Jared
    • Don't drop it
Size: 1/8" Dia - 1" CL Style: DOWN CUT
I have found my go to bit for dep carves on my cnc machine. The bits have worked well every time I have used them. The issue with longevity is really my fault and not the bit. I have plunged my router too deep and had the lower portion snap off and I have also dropped it from about 5 feet and had it snap off too. for what it costs it is a great bit. ... show more
Reviewed in the United States on August 19, 2023 by Mark C. Hughes
    • Fragile, but very useful.
Size: 1/16" Dia - 1/2" CL Style: DOWN CUT
If you do a lot of intricate CNC engraving you will find this to be an often needed and invaluable tool. They are difficult to find, very fragile, and quite expensive considering the lack of durability. I try to use a 1/4" or 1/8" tool for clearing and only use this tool for cleaning up the detail edges. Even then, make sure you are taking VERY shallow cuts, and slow your feed rate down to like 30" per minute. Even having taken all those precautions if your cut takes you through a knot, or you are using particularly hard material like hickory, you will snap these off occasionally. If you are doing custom client jobs, make sure you keep more that one of these on hand and tread very gingerly with them. If you are just doing fine engraving and don't need the straight bit, the 1/16th tapered ball nose is far more durable, and might be a better choice for some jobs. Even for inlays I usually use the tapered bit. You just have to experiment a bit because you'll have to make your pockets a little undersize to compensate for the taper. Once you get it down, it a much better way to go for inlays. The taper actually gives you tighter inlays and less gaps. When you do need the straight edges AND tight corners (epoxy fills, for example) this tool is invaluable. I have bought several of these in spite of the breakage, and will continue to buy them. ... show more
Reviewed in the United States on July 5, 2022 by Douglas Ray
    • Quickly became my favorite bit in my Shaper Origin!
Size: 1/16" Dia - 1/2" CL Style: DOWN CUT
I like to cut signs (and intricate pieces of signs) with my Shaper Origin, and this bit can get into sharp corners much more effectively than other bits (like the 1/8th or 1/4 inch). I’ve started working with 2.7mm plywood, and this bit can easily cut it in one pass, and as it’s a down cut bit, it seems to minimize the sanding needed on the top edge (which is a big deal for me). The bit is a little pricey, but this far I’d say “Worth every penny!” ... show more
Reviewed in the United States on October 13, 2022 by HandyBadger
    • Works great for HDPE ColorCore detailed lettering
Size: 1/32" Dia - 1/8" CL Style: DOWN CUT
After a 8 different engraving bits of various styles this one is finally what solved my project issue of getting high detail engraved control panel lettering to work well on HDPE ColorCore plastic. A very specific need, but this uniquely solved my problem and the key was 1/32" downcut spiral flutes. Everything else led to fuzzy poor quality lettering with lots of chips to handpick out. No so with this bit! Perfect and clean cuts with successive 0.3mm depth cuts at 0.0025" chip load. ... show more
Reviewed in the United States on April 16, 2025 by CR
    • Detail bit
Size: 1/32" Dia - 1/8" CL Style: DOWN CUT
Excellent tip for the fine detail that you need. I had to purchase more because the quality was great. Love the precise detail that it gives the wood.
Reviewed in the United States on December 1, 2025 by XOCHIL BARSAMIAN
    • Great for my CNC
Size: 1/4" Dia - 1" CL Style: DOWN CUT
I bought this to use on my CNC machine for making flags and signs. It cuts very well and continues to do so after many cuts. The price is great and the quality is even better.
Reviewed in the United States on March 21, 2024 by Tony Mason

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