Our rankings are generated through the algorithmic analysis of thousands of customer reviews about products, brands, merchant customer service levels, popularity trends, and more. We use advanced technology, including AI, to help process and organize this information at scale, supporting our analysis with greater speed and consistency. The rankings reflect our opinion and should be a good starting point for shopping.
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10 Best straight spiral trim bits of 2026
Explore top picks
Best Choice1
EANOSIC9.9Exceptional
Downcut Spiral Flush Trim Router Bit, 1/4 Inch Shank Solid Carbide Flush Trim Router Bits Spiral with Nano Coated by EANOSIC (1/4" Shank Down-Cut)
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country of origin:China
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package dimensions:3.78 x 3.39 x 0.55 inches 1.13 ounces
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asin:B09N9QBGBS
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date first available:December 8, 2021
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item model number:E108
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Value for Money2
Serestool9.8Exceptional
Serestool Top and Bottom Bearing Flush Trim Router Bit 1/4 Shank, 1/2" Cutting Diameter, 1-1/8" Cutting Length, Up&Down Compression Cut, Carbide Spiral Pattern Template Bit for Wood Trimming
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3
Freud9.7Exceptional
Freud 50-102: 1/2" (Dia.) Top Bearing Flush Trim Bit
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measurement system: Metric
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product dimensions: 3.5 x 1.5 x 1.5 inches
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global trade identification number: 00008925384212
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color: Red
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shape: Rectangular
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4
Whiteside Router Bits9.6Exceptional
Whiteside RFT2100 Spiral Upcut Flush Trim Router Bit: 1/4 Inch Cutting Diameter, 1/4 Inch Shank, 1 Inch Cutting Length, Double Bearing Guide
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country of origin:N/A
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package dimensions:N/A
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asin:B000HPYOJ6
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date first available:August 9, 2006
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item model number: RFT2100
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5
EANOSIC9.4Excellent
Up Down Compression Spiral Flush Trim Router Bit, 1/4 Inch Shank Solid Carbide Flush Trim Router Bits CNC Spiral Bit with Nano Coating by EANOSIC
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country of origin:China
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package dimensions:3.78 x 3.39 x 0.59 inches 1.13 ounces
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asin:B0BPS4XMXW
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date first available:December 12, 2022
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item model number:E210
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6
EANOSIC9.1Excellent
Upcut Spiral Flush Trim Router Bit, 1/4 Inch Shank Solid Carbide Flush Trim Router Bits Spiral with Nano Coated by EANOSIC (1/4" Shank Up-Cut)
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country of origin:China
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package dimensions:4.17 x 3.54 x 0.91 inches 1.13 ounces
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asin:B09N9Q5T5Y
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date first available:December 8, 2021
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item model number:E2109
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7
Whiteside Router Bits9.0Excellent
Whiteside RU2100 Spiral Upcut Straight Router Bit: 1/4 Inch Cutting Diameter, 1/4 Inch Shank, 1 Inch Cutting Length
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country of origin:N/A
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package dimensions:N/A
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asin:B000K2BGNS
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date first available:October 30, 2006
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item model number: RU2100
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8
Akylin8.9Very Good
Akylin Compression Flush Trim Router Bit 3/4" Dia. 1-3/16" Height,1/2 SHK
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9
Jiiolioa8.8Very Good
Top Bearing Compression Flush Trim Router Bit 1/4" Shank 1/2" Cutting Dia
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10
Whiteside Router Bits8.6Very Good
Whiteside RFTD2100 Spiral Downcut Flush Trim Router Bit: 1/4 Inch Cutting Diameter, 1/4 Inch Shank, 1 Inch Cutting Length, Double Bearing Guide
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