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corner round 1-1/2 radius 1/2 shank describes this Amana Tool edge forming corner rounding router bit designed to round edges to a 1-1/2 inch radius. This basic edge-forming bit produces a consistent corner round profile, so long runs of identical parts stay uniform. The built-in ball bearing guide follows the workpiece edge, which simplifies setup on router tables where repeatable positioning matters. The bit cuts a fillet at the base of the radius, giving a crisp transition that reads cleanly on trim, furniture, or panel work. The same cut can ease sharp edges for handling, act as a simple decorative profile, or become one element within a more complex multi-pass profile. Also known as a round over, rounding over, or quarter-round bit, it supports common shop terminology on drawings and cut lists for clearer communication.
The web description specifies that this corner-rounding bit is not for use in a handheld router, directing it to router table or similar controlled setups. The 1/2 inch shank suits routers designed for table mounting, where the larger shank helps manage the 3-1/2 inch diameter cutting circle. With a ball bearing guide on the bit, the edge of the workpiece becomes the reference, which reduces reliance on fence-only alignment when running curved or template-shaped parts. The 1-3/4 inch cutting height allows the installer to set bit projection to match the desired radius exposure, so the fillet and round over land exactly where the drawing calls for them. The 3-5/8 inch overall length works well in typical router lifts or fixed bases, giving enough vertical travel for fine-tuning without excessive projection above the table surface.
This edge forming corner rounding with ball bearing guide bit from Amana Tool is part of the bits, blades and cutters profiling class, so it fits cabinet and woodworking shops that need repeatable edge profiles. The 1-1/2 inch radius is suited to larger edge treatments, such as table tops, shelves, or heavy trim where a more generous round over is specified. Because the bit is also known as a round over, rounding over, and quarter-round, it aligns with common architectural and shop language, helping drawings and orders stay clear. The ball bearing guide enables work along straight or curved edges, which is useful on shaped tops or arched components cut to a template. The ability to cut a fillet at the base of the radius gives designers a defined line that reads consistently across multiple parts in a run.
The web description notes that this corner-rounding bit can be used as a simple profile or as part of a complex one, which means the same tool can handle both basic easing passes and multi-step decorative edges. When used to ease edges, the 1-1/2 inch radius softens sharp corners substantially, which improves handling and reduces harsh transitions on frequently touched surfaces. As part of a more complex profile, the fillet and radius from this bit can be combined with additional passes from other profiling bits, allowing layered detail without changing the reference edge. If a smaller pilot bearing is used, the bit can produce a second shoulder, effectively turning it into a beading bit; this creates an extra step in the profile, adding visual depth while using the same main cutter. The manufacturer part number 49526 identifies this exact combination of 3-1/2 inch diameter, 1-1/2 inch radius, 1-3/4 inch cutting height, and 1/2 inch shank, which helps purchasing and production stay aligned when reordering or documenting tooling. The D1 value of 1/2 inch ties into interface details, supporting accurate router and collet matching in shops standardizing on 1/2 inch shank tools.
The Amana Tool 49526 is an edge forming corner-rounding router bit with a ball bearing guide, so it is used to create a defined rounded edge with a controlled fillet.
This corner-rounding bit has a 1-1/2 inch radius and a 3-1/2 inch diameter, providing a large, smooth round over suited to substantial edges and heavier components.
This corner-rounding bit is specified as not for use in a handheld router, so it is intended for router table or similar fixed installations.
The Amana Tool 49526 uses a 1/2 inch shank, which suits routers and lifts designed for 1/2 inch collets commonly found in cabinet and millwork shops.
The ball bearing guide follows the workpiece edge, so the profile tracks consistently along straight or curved edges without relying only on fence position.
With a smaller pilot bearing, this corner-rounding bit produces a second shoulder, effectively turning it into a beading bit that adds an extra step to the profile.
The Amana Tool edge forming corner rounding with ball bearing guide bit with 1-1/2 inch radius, 3-1/2 inch diameter, and 1/2 inch shank suits shops needing a larger round over profile. The defined fillet, router table-oriented design, and ability to act as a simple round over or beading-style profile give flexibility in cabinet, furniture, and trim runs. For projects calling for a generous quarter-round or round over, this dedicated radius and shank size support consistent, production-style edge forming.
Sold In: 1 Each
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Each |  AA47706 Mfr# 47706 | 3/16" x 1/2" Steel Ball Bearing Guide |
