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Sinoprotools Spiral Flush Trim Router Bits 1/4-Inch Shank, CL 1-7/16", CD 1/4", Solid Carbide Extra Long Up-Cut Flush Trim Bit, with 4 Bearings, Flush Cut Router Bit for Woodworking Trimming

  • Based on 24 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Nov 26
Order within 12 minutes
Available payment plans shown during checkout

Size: Up-Cut with 4Bearings


Features

  • Exact Size: Professional up-cut spiral flush trim router bit with 4 bearings- 1/4 inch shank, 1/4 inch cutting diameter, 1-7/16 inch cutting length, 3-1/2 inch for total length, Recommended RPM: 18000-20000 (max 24000)
  • Efficient Cutting: Industrial quality up-cut spiral flush trim router bit provide precise, efficient cuts and offers extreme durability. A high-performance industrial quality tool. deliver very fast, clean cuts in thick tops.
  • High Quality: The flush trim router bit made of Solid Carbide, with C3 Micro-grain Tungsten Carbide, High heat resistance and wear Resistance, reduce the times of tool change, High precision grinded and polished, good rigidity, not easy to break, with permanent 4 bearings retaining collar to reduce trimming mishaps.
  • Applicable Materials: This spiral flush trim router bit is perfect for use with soft & hard woods, ply-woods, composites, laminates, plastics and some non-ferrous metals.
  • Applicable Equipment: This bottom bearing router bit are perfect for the hand router use or table router which have a 1/4 " collet.

Size: Up-Cut with 4Bearings


Material: Carbide


Brand: Sinoprotools


Cut Type: Up-Cut


Package Dimensions ‏ : ‎ 6.38 x 4.92 x 0.83 inches; 1.52 ounces


Item model number ‏ : ‎ 188


Date First Available ‏ : ‎ August 28, 2022


Manufacturer ‏ : ‎ Sinoprotools


Country of Origin ‏ : ‎ China


Best Sellers Rank: #148,158 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #135 in Spiral Router Bits


#135 in Spiral Router Bits:


Customer Reviews: 4.1 4.1 out of 5 stars 24 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 26

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works great!
Size: Compression Trim Bit
Bit held up well for flush trimming mesquite hardwood when I was building my open air computer case. Sharp clean cuts ;)
Reviewed in the United States on February 20, 2024 by Robert Robert

  • Junk
Used it to cutout osb in window/door openings. I use the cordless dewalt routers, set between 5-6 on the speed dial, so not too fast. The bearing flew off within a few minutes. I bought two bits, put a new bit in and the same thing happened.
Reviewed in the United States on February 13, 2024 by Jack

  • Dangerous
Size: Up-Cut with 4Bearings
This bit broke the first time I used it. I am still looking for the part that came out flying out of my router table. I am not asking for an exchange because I do not want the risk.
Reviewed in the United States on February 2, 2024 by alberto

  • Poor quality.
Size: Down-Cut 1-1/8" CL
Took a chance buying since there were no actual reviews. The bit broke within 5 minutes (using pine)
Reviewed in the United States on August 7, 2023 by Macy Marshall

  • Awesome
Size: Up-Cut with 4Bearings
Compared to the only other quad bearing on the market for the price it’s amazing.
Reviewed in the United States on November 5, 2023 by Brian & Heather

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