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1/4″ Slot & Undercut Router Bit w/Bearing – Whiteside 3110B (AstraHP Coated)

Whiteside’s 1/4″ slot router bit can be used to cut a slot at the bottom of a sliding barn door. Changing the bearing size to vary your cutting depth, click here to see available bearings AstraHP Coated Shank: 1/4″ Kerf (Cut Length): 1/4″ Cut depth: 1/2″ (w/ included B9 bearing) Large Diameter: 1-1/2″ Recommended RPM: 12,000 Made in USA #row-466021393 > .col > .col-inner { padding: 20px 0px 20px 0px; } #section_1253181501 { padding-top: 45px; padding-bottom: 45px; } @media (min-width:550px) { #section_1253181501 { padding-top: 65px; padding-bottom: 65px; } } @media (min-width:850px) { #section_1253181501 { padding-top: 2px; padding-bottom: 2px; } }

1/4″ Slot & Undercut Router Bit w/Bearing – Whiteside 3110B (AstraHP Coated) - Main image
$42.77 $68.99 In stock

Category: Slot Cutter Router Bit & T-Slot Cutter Router Bits

This Whiteside 3110B router bit is designed for cutting slots and undercuts with a bearing guide. The AstraHP coating is applied to the cutting edges to help reduce friction and heat buildup during use.

  • 1/4-inch shank size for use with compatible routers and router tables.
  • Includes a bearing for guided cuts along a workpiece edge or template.
  • Suitable for slotting and undercutting applications in woodworking projects.
  • Manufactured by Whiteside, a brand known for quality router bits.
  • Coated with AstraHP for enhanced performance and durability.
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Claire H. ★★★★★

Cut a bunch of T-slots in hard maple this weekend and the AstraHP coating definitely kept the heat down—the bit came out cool enough to touch right after. The bearing guide rode smooth and left a clean undercut edge that needed zero sanding. Honestly, this is the first slot cutter I've used that did

George S. ★★★★★

I needed a bit that wouldn't overheat on dense cherry, and the AstraHP coating on this one definitely keeps the friction down. The bearing guide made the slot cuts smooth and clean without any burning.

Claire L. ★★★★★

I was cutting some test slots in walnut and the bearing guide tracked perfectly along the edge. The AstraHP coating definitely kept the bit cooler than my uncoated ones. Clean cut with no burning even at a moderate feed rate.