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corner rounding bit 1/8 radius describes this Amana Tool 2 inch x 1/8 inch Radius Corner Rounding Bit with Ball Bearing Guide, built as a basic edge-forming router bit that rounds an edge to a given radius. The 1/8 inch radius cut eases sharp edges, which matters when a project needs a small, consistent round-over that still keeps the edge definition. The ball bearing guide follows the stock edge, so the bit tracks the profile without layout lines. As a 2-flute router bit, it balances cut speed with a smooth finish along the edge. The 2 inch overall length helps this bit reach typical workpiece edges while staying compact in a handheld router or router table setup. As a round over, rounding over, or quarter-round bit, it serves as a standard profile for many cabinet and woodworking jobs.
This Amana Tool corner rounding bit uses a ball bearing guide that rides directly on the workpiece edge, so the profile follows existing stock geometry instead of fences. The 1/4 inch shank seats in a compatible collet, which supports handheld or table-mounted routers that use 1/4 inch bits. With a 3/8 inch cutting height, the bit can be raised or lowered in the router to place the 1/8 inch radius where it best suits the workpiece thickness. As a 2-flute design, it cuts on both sides of the bit rotation, which helps maintain balance during passes along long cabinet parts or trim runs. The overall 2 inch length keeps the cutting portion close to the collet, supporting controlled handling when following edges guided by the bearing.
This basic edge-forming bit is described as a corner-rounding bit that rounds an edge to a given radius, so it fits work where a small 1/8 inch round-over is desired on exposed edges. The 3/4 inch diameter and 3/8 inch cutting height let the bit address common cabinet parts, shelves, face frames, and trim pieces that benefit from eased edges. The ball bearing guide allows routing along straight or curved edges because it follows the profile that is already cut into the workpiece. As an edge forming router bit in the Edgeforming product category, it suits jobs where shaping the outside edge is part of the finishing workflow on woodworking components.
The bit is described as a basic edge-forming bit that can be used to ease edges, as a simple profile, or as part of a complex one, so the 1/8 inch radius can serve alone or combine with other cuts for layered designs. It also cuts a fillet, which means it can leave a small flat area next to the round-over, adding definition to the profile on furniture or cabinet parts. The bit is also known as round over, rounding over, and quarter-round, so it matches standard terminology used when specifying common edge treatments across drawings and shop notes. If a smaller pilot bearing is used, a second shoulder can be produced, in effect making the bit a beading bit, which gives flexibility to create a bead-style profile from the same cutting geometry when the project layout calls for that detail.
The Amana Tool 49496 is a basic edge-forming corner-rounding router bit, used to round an edge to a given radius for easing edges or building simple and complex profiles.
The bit has a 1/8 inch radius, producing a small, controlled round-over that softens sharp edges while preserving overall part dimensions for cabinetry and woodworking projects.
This corner rounding bit has a 1/4 inch shank, matching routers and collets designed for 1/4 inch bits, which are common in trim and light-duty routing applications.
The bit uses a ball bearing guide that runs on the workpiece edge, so the cutting profile follows existing contours, supporting consistent round-overs along straight or curved edges.
The corner-rounding bit can act as a beading bit when a smaller pilot bearing is used, producing a second shoulder that forms a bead-style profile on the routed edge.
Key dimensions are 3/4 inch diameter, 1/8 inch radius, and 3/8 inch cutting height, which together define how much material is shaped during each pass along the edge.
The Amana Tool 2 inch x 1/8 inch Radius Corner Rounding Bit with Ball Bearing Guide provides a defined 1/8 inch radius using a 3/4 inch diameter cutter and 3/8 inch cutting height, suiting projects that call for a controlled eased edge. The 1/4 inch shank and 2-flute design align with routers that use 1/4 inch bits for edge-forming passes. For woodworking or cabinet jobs that specify round over, rounding over, or quarter-round profiles, this bit offers the described geometry to match those requirements on repeat runs.
Sold In: 1 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Each |  AA47706 Mfr# 47706 | 3/16" x 1/2" Steel Ball Bearing Guide |
