Order by 24/7 by web, contact our sales reps or call by phone.
What you need, when you need it, all in one place.
Most orders ship same day.
Advice and support from knowledgeable professionals.
corner rounding bit 3/8 radius describes this Amana Tool 2-3/16 inch x 3/8 inch Radius Corner Rounding Bit with Ball Bearing Guide, 2-Flute, 1/4 inch Shank, built for edge-forming work where a consistent 3/8 inch radius is needed. The basic edge-forming design means the bit rounds an edge to a given radius and cuts a fillet in one pass, which helps create repeatable, professional-looking edges without extra setup changes. The ball bearing guide rides the workpiece edge during routing, helping the operator follow straight or curved edges accurately using the bearing rather than a fence. The 2-flute cutting geometry shapes the profile while the bearing keeps the radius on track, which supports smoother workflow when running multiple parts with the same profile. The 1/4 inch shank matches compact routers and many shop routers that accept that shank size, so the bit fits naturally into common woodworking setups.
This corner-rounding bit uses a ball bearing guide at the tip, so the bearing sets the path along the workpiece edge and simplifies guidance during routing of both straight and curved parts. With the bit sized at 2-3/16 inches x 3/8 inch radius, the cutter can be set so the full radius and fillet engage the edge, helping produce the intended profile with predictable contact. The 1/4 inch shank fits routers that accept that shank size, which keeps tool changes aligned with common compact router collets in many shops. As a basic edge-forming router bit, it is suited to operations where a 3/8 inch radius round-over is required repeatedly, helping organize setups around a single, known profile.
The Amana Tool corner-rounding bit with 3/8 inch radius is described as a basic edge-forming bit, so it is suited to routine tasks that call for a standard round-over on wood components. When the cut is used to ease edges, it turns sharp edges into a smoother transition, which supports projects like cabinet doors, shelving, and trim where handled edges are expected. As a simple profile, the 3/8 inch radius with fillet gives a consistent, modest detail that fits many cabinet and furniture styles without complicating the machining sequence. Because the profile is also known as round over, rounding over, and quarter-round, it matches common design language in drawings and shop notes that call for those profiles at 3/8 inch radius. The bit also fits into workflows that require quarter-round style edges on various stock thicknesses, as the bearing-guided design follows the outer edge regardless of board width.
The ball bearing guide on this round over bit with bearing guide rides directly on the workpiece edge, so once height is set, the actual routing path is controlled by the bearing rather than a fence, which supports consistent results on identical parts. The ability to cut a fillet at the same time as the radius means the bit defines both the rounded corner and the shoulder in a single pass, helping reduce the number of tool changes when building a specific profile. When a smaller pilot bearing is used, a second shoulder can be produced, in effect making the bit a beading bit, which adds flexibility because a bead profile can be cut without changing to a different cutter body. This beading capability lets the same tool support both round-over and beading profiles, which is useful when matching existing work that alternates between eased edges and decorative beads. Across repeated runs, the 3/8 inch radius remains the controlling dimension for the round-over, which helps maintain consistent edge geometry between replacement parts and original parts.
The Amana Tool 49512 is a 2-3/16 inch x 3/8 inch Radius Corner Rounding Bit, classified as a basic edge-forming router bit, so it is used to shape edges rather than grooves or joinery.
This corner-rounding bit rounds an edge to a 3/8 inch radius, which defines how much material is removed from the corner and sets the size of the round-over on the finished part.
The bit uses a ball bearing guide, so the bearing runs along the workpiece edge and directs the cut, allowing the profile to follow straight or curved edges without relying on a fence.
The 49512 corner round bit has a 1/4 inch shank, so it installs in routers that accept 1/4 inch shank tooling commonly used in woodworking shops and on compact routers.
This corner-rounding bit cuts a fillet with the radius and, with a smaller pilot bearing, can also produce a second shoulder, in effect working as a beading bit for more detailed edges.
The cut can be used to ease edges, serve as a simple profile, or act as part of a complex profile, so it fits both basic rounding tasks and multi-step decorative edge work.
The Amana Tool 2-3/16 inch x 3/8 inch Radius Corner Rounding Bit with Ball Bearing Guide, 2-Flute, 1/4 inch Shank gives a defined 3/8 inch round-over with fillet, so edge-forming setups can be centered on that profile. With the option to use a smaller pilot bearing to create a beading profile from the same cutter body, this router bit supports both everyday easing of edges and more detailed work. For cabinet, furniture, or trim projects that repeatedly specify a 3/8 inch round over, this 49512 corner round router bit provides a dedicated, bearing-guided tool to run that profile consistently.
Sold In: 1 Each
