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Sinoprotools Spiral Router Bits with Up-Cut 1/4 inch Shank, Solid Carbide 4 inch Extra Long CNC Spiral Bit Up-Cut, 2-Flute 2-Inch Cutting Length, CNC Bits End Mill for Foam ABS, EVA

  • Based on 92 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Dec 24
Order within 7 hours and 20 minutes
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Size: 4 inch 3-Flute


Features

  • Solid Carbide spiral router bit with 1/4inch shank and 1/4inch cutting diameter, 2 inch cutting length, 4 inch for total length, CNC Operating Spindle Speed 18000 RPM, Depth of Cut 1*Tool Diameter, Specifically designed for milling Polyurethane Foam and Expanded Polystyre, Recommendation use the slowest suggested feed rates and the shortest bits necessary.
  • The CNC end mill spiral bit excellent for cutting Acrylonitrile-Butadiene-Styrene (ABS), Ethylene-Vinyl Acetate Foam (EVA), Polvurethane Foam, Polyethylene Foam, Wood can be processed, but it is not strongly recommended. If used for processing wood, the depth of each processing should not exceed 1/4 inch. For example, when processing 1 inch deep wood, it is divided into 4-5 processing steps.
  • Spiral bits used for smoothly upcut groove and slots, Plunge Mortises, Cycles and dado with clean edge and bottom, better than straight bits, Provides deeper cuts and larger slices with fewer passes in thick materials resulting in improved productivity and less assembly.
  • Spiral upcut bits used for side milling, end milling, finish machining, etc. End Mill Bits can smoothly upcut groove and slots, Mortises, Cycles and dados with clean edge and bottom, better than straight bits, The up-cut spiral ejects chips away from the work-piece.
  • The route bit suit for CNC router and Makita, Bosch, and any brand plunge router with 1/4 collet, For thick material with up-cut chip removal. For 2D & 3D CNC routing applications.

Size: 4 inch 3-Flute


Material: Tungsten Carbide


Brand: Sinoprotools


Cut Type: Up-Cut


Number of Flutes: 3


Package Dimensions ‏ : ‎ 4.57 x 0.67 x 0.55 inches; 1.52 Ounces


Item model number ‏ : ‎ /


Date First Available ‏ : ‎ June 17, 2022


Manufacturer ‏ : ‎ Sinoprotools


Country of Origin ‏ : ‎ China


Best Sellers Rank: #60,667 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #30 in Spiral Router Bits


#30 in Spiral Router Bits:


Customer Reviews: 4.3 4.3 out of 5 stars 92 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 24

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


  • That it will serve the purpose for which was intended
Size: 4pcs End Mills Set
Although a little smaller than the usual size router bit however I love it. I have not used them yet but I'm sure they will be useful.
Reviewed in the United States on May 6, 2023 by Bernard.

  • sharp
Size: 4pcs Engraving Bits Set
These work great in my router for making designs in wood.
Reviewed in the United States on July 13, 2023 by JTC

  • perfect for double baffle (1.5") holes. used with the 200 model jasper jig
Size: 4 inch 3-Flute
The media could not be loaded. bit worked awesome for cutting out holes that were 1.5" deep with a jasper circle jig as long as you didnt cut more than a 1/4 inch at a time, even then it had a little bit of chatter. TGATS TO BE EXPECTED WITH A BIT THIS LENGTH. used it to cut out my 2 port holes and 2 subwoofer holes. I think it could cut atleast 50 more before breaking maybe more. high quality and extremely sharp. ... show more
Reviewed in the United States on May 18, 2023 by Tiffany Lopanec

  • Good set
Size: 4pcs Engraving Bits Set
Good set for the price would order again .Running on a CNC
Reviewed in the United States on December 9, 2022 by roy mcclurg

  • Excellent Product
Size: 4 inch 3-Flute
I needed a longer CNC Bit to carve a 2.2 inch board. This was perfect for the task.
Reviewed in the United States on April 3, 2023 by Amazon Customer

  • Product description 3.5 inches. Received 3 inch bit.
Size: Extra Long Spiral Upcut Bit
Good product, wrong size
Reviewed in the United States on December 17, 2022 by Richard Keith Beam Richard Keith Beam

  • A Valuable set of bits for your Router
Size: 4pcs Engraving Bits Set
These bits seems very well made. They gave a very nice look to my drawer fronts.
Reviewed in the United States on February 15, 2023 by shiny knight

  • Spiral Router didn't last
Size: 4 inch 3-Flute
It cuts well but did not last even one day. It cracked in half.
Reviewed in the United States on July 13, 2023 by Oxford

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