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    Solid Surface
    1. Home
    2. Bits, Blades and Cutters
    3. Solid Surface
    Item # AA57139 • Mfr # 57139

    1-1/2" x 1/2" Radius Corner Rounding Bit with Ball Bearing Guide Solid Surface, 2-Flute, 1/2" Shank

    Description

    Router Bit Corner Round For Solid Surface

    Router bit corner round defines this Amana Tool 1-1/2 x 1/2 radius corner rounding bit as a solid choice for shaping solid surface edges where a flat reference face is available. The bit uses an Ultra-Glide non-marring bearing, so it rides on finished solid surface without marking it, which helps maintain a clean, consistent profile on visible countertop edges. Its 1/2 inch shank fits routers built for that shank size, allowing stable cuts during solid surface fabrication work. The 2-flute design cuts the profile, so each pass shapes while balancing material removal and surface finish on the edge being routed. This bit is part of Amana Tool's solid surface-focused tooling, giving fabricators a profile solution aimed at common countertop edge styles.

    Solid Surface Edge Details That Support Workflow

    • The Ultra-Glide non-marring bearing references a flat surface, so the bearing follows the countertop face and keeps the cutting edges aligned to the work, which supports repeatable edge profiles on multiple pieces.
    • The bit is described for solid surface, so it targets that material group and gives fabricators a profile tool suited to common countertop and related solid surface installations.
    • The 1/2 inch shank specification means it is sized for routers accepting that shank, which supports a rigid connection between collet and bit during edge forming.
    • The 2-flute cutting design shapes the corner, so both flutes share the cut and can produce a consistent profile along the length of the pass on the solid surface edge.
    • The 1-1/2 x 1/2 radius corner rounding description defines the intended corner form, so fabricators can match this profile when coordinating with other bits or planned countertop edge designs.

    Corner Rounding Bit Use And Edge Formation

    This Amana Tool corner rounding bit is intended for rounding edges where there is access to a flat surface, so the Ultra-Glide non-marring bearing can track that surface and guide the cut. As the bearing runs along the flat solid surface face, the cutter forms the 1/2 inch radius at the edge, which helps produce a controlled, uniform roundover on tops or similar work. The router bit corner round profile is specified for solid surface work, so it supports typical countertop fabrication steps where a shaped edge is needed along straight runs.

    Using This Router Bit In Edge Design Work

    Where This Corner Rounding Bit Is Applied

    This router bit corner round model is intended for solid surface applications where a shaped edge is required. The bit is used for rounding edges where there is a flat surface next to the edge, so the Ultra-Glide non-marring bearing can ride that face while the cutting edges form the corner. Amana Tool identifies this as a solid surface router bit, so it fits into workflows such as countertop fabrication, splashes, or similar flat solid surface components that benefit from a consistent rounded edge.

    How Two-Pass Edge Profiles Improve Results

    The bit is described for use in concert with either a Countertop No-Drip Design bit or a corner-rounding bit with a radius bearing, so together they can produce a no-drip edge or a bull nose in two passes. Using this corner rounding bit alongside a countertop no-drip design bit allows the no-drip feature and the rounded portion to be formed in sequence, which helps build the final profile without resorting to hand-shaping. When used with another corner-rounding bit with a radius bearing, the combination can create a bull nose edge in two passes, so the top and bottom rounds meet to form the full bull nose. This approach lets solid surface fabricators create these common edge styles using coordinated tooling, supporting repeatable profiles across multiple countertop sections.

    Common Solid Surface Router Bit Questions

    What material is this 57139 corner rounding bit intended for?

    The 57139 corner rounding bit is described for solid surface use, so it targets common countertop and similar solid surface fabrication tasks where shaped edges are required.

    How does the Ultra-Glide non-marring bearing help during routing?

    The Ultra-Glide non-marring bearing references the flat solid surface face, guiding the cut while avoiding marks on the material, which helps maintain a clean, finished appearance.

    What shank size does this Amana Tool router bit use?

    This Amana Tool router bit uses a 1/2 inch shank, which suits routers built for that shank size and supports a rigid connection for edge forming operations.

    How is this bit used to create a no-drip edge?

    This bit is used in concert with a Countertop No-Drip Design bit, so together they produce a no-drip edge in two passes during solid surface countertop fabrication.

    Can this corner rounding bit help form a bull nose edge?

    The bit is described for use with a corner-rounding bit with a radius bearing, and in two passes that combination produces a bull nose solid surface edge.

    What edge shape does this router bit corner round create?

    This router bit corner round is a 1-1/2 x 1/2 radius corner rounding bit, so it forms a 1/2 inch radius profile on solid surface edges guided by the bearing.

    Select This Bit For Solid Surface Edge Profiles

    The Amana Tool 1-1/2 x 1/2 radius corner rounding bit with Ultra-Glide non-marring bearing is structured for solid surface edge shaping where a flat reference face is present. Its 1/2 inch shank and 2-flute design support stable routing and controlled material removal. Used alone, it rounds exposed edges; used with a Countertop No-Drip Design bit or a radius-bearing corner-rounding bit, it helps build no-drip or bull nose profiles in two passes. For solid surface projects needing these edge styles, this router bit corner round offers a defined profile solution.

    Diameter (in)
    1-1/2 in
    Shank Diameter (in)
    1/2 in
    Product Type
    Solid Surface Bits
    Number of Flutes
    2
    Radius (in)
    1/2 in
    Overall Length (in)
    2-3/8 in
    Maximum Speed (RPM)
    28000 rpm
    Minimum Cutting Height
    3/4 in
    Supplier Pack Size
    1
    Sold In
    1
    Diameter (in)
    1-1/2 in
    Shank Diameter (in)
    1/2 in
    Product Type
    Solid Surface Bits
    Number of Flutes
    2
    Radius (in)
    1/2 in
    Overall Length (in)
    2-3/8 in
    Maximum Speed (RPM)
    28000 rpm
    Minimum Cutting Height
    3/4 in
    Supplier Pack Size
    1
    Sold In
    1
    3/4 in49/64 in29/32 in1 in1-1/8 in1-1/4 in1-1/2 in1-7/8 in2 in2-1/16 in2-1/8 in2-9/64 in2-1/4 in2-5/8 in
    1/4 in1/2 in
    PullSolid Surface BitsN/A
    N/A24
    N/A1/8 in1/4 in5/16 in3/8 in1/2 in33/64 in9/16 in3/4 in
    N/A17/32 in5/8 in3/4 in25/32 in15/16 in1 in
    1-7/8 in2-5/16 in2-3/8 in2-7/16 in2-1/2 in2-5/8 in2-25/32 in2-7/8 in2-29/32 in3 in3-1/4 in3-5/16 in3-1/2 in4-1/2 in
    N/A1/2 in3/4 in1-1/2 in
    N/A1/2-3/4 in
    N/AAluminum
    N/A5/8 in3/4 in13/16 in
    18 Degree5 Degree10 DegreeN/A11.5 Degree45 Degree14 Degree
    1/4 in3/8 in1/2 in11/16 in3/4 in7/8 in15/16 in63/64 in1 in1-1/8 in1-1/4 in1-1/2 in2 in
    Amana Tool
    $169.76/Each
    1-1/2" x 1/2" Radius Corner Rounding Bit with Ball Bearing Guide Solid Surface, 2-Flute, 1/2" Shank
    Item# AA57139 / MFR Part # 57139
    Each
    Each
    In Stock

    Sold In: 1 Each

    Each

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