Micro-Bearing Flush Trim Spiral Router Bit, 1/4SH, 3/8" CL, 3/16" CD, 2-Flute, Mini 3/16" Twin Top Bearings for Small Radius Trim and Pattern Routing, USA Made - US221837FTU

★★★★★ 4.9 48 reviews

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Management number 214320598 Release Date 2026/04/12 List Price $14.80 Model Number 214320598
Category

Precision flush trims for the tightest details. Standard flush trim bits can’t reach into sharp inside corners, but Ultra-Shear’s 3/16" Micro-Bearing Flush Trim Bits are purpose-built for that challenge. At just 3/16" in diameter, they’re perfect for handling the finest details of your toys, gifts, and intricate woodworking projects. What sets them apart: Twin ball-bearing pilots (not just one) keep the bit flowing smoothly in and around patterns, giving you more control and stability.True ball bearings, not brass bushings, for longer life and zero burning.Spiral cutting geometry slices fibers cleanly and channels chips away from the cut—leaving crisp, splinter-free edges. Available in 3/8", 9/16", and 3/4" cut lengths, these bits let you produce consistent, professional-quality duplicates just by running the bearing against a plywood or MDF pattern. Pair them with Ultra-Shear’s micro-bearing roundovers and chamfers to complete your toolkit for small-scale, high-detail work. American-made quality you can trust:Crafted in Strongsville, Ohio using state-of-the-art CNC grinding equipmentHighest grade micro-grain carbideUltra-fine grinding wheelsPrecision work by skilled Northeast Ohio machinists Don’t compromise with imports. With Ultra-Shear, you get the world’s smallest flush trim bits—engineered for detail and built to last.

  • SPECS - US221837FTU | Flush Trim Bit | 1/4" Shank | 3/16" Cut Diameter | 3/8" Cut Length | 2 Flute | Solid Carbide | Spiral Up-Cut | Micro-Bearing Router Bit | Twin Mini Top Bearings | USA Made
  • TWIN BALL BEARINGS - The Micro-Bearing Flush Trim Bits feature two 3/16" diameter ball bearings which eliminate the burning caused by other static brass pilots.
  • TIGHT-RADIUS ROUTING - When pattern routing toys or other intricate designs, the large bearing found on typical pattern bits skips over any small detail or tight corner. The 3/32" radius bearing gets in and out of corners impossible with other bits.
  • AMERICAN MADE QUALITY - Like all Ultra-Shear Router Bits, the Solid Carbide Micro Bearing Flush Trim Bits are made in Strongsville, Ohio.
UPC 810137209845
Cut Type Flush-Trim Cut
Size Name 1/4 Shank
Brand Name Ultra-Shear
Part Number US221837FTU
Manufacturer Ultra-Shear
Material Type Carbide
Cutting Length 0.38 Inches
Cutting Diameter 0.19 Inches
Number of Flutes 2
Included Components 3/8 cut length flush trim bit

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