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    Profiling
    1. Home
    2. Bits, Blades and Cutters
    3. Profiling
    Item # AA45918 • Mfr # 45918

    3/4" x 1-3/4" x 3/8" Radius Core Box Router Bit, 1/4" Shank

    Description

    Core Box Router Bit For Grooves And Profiles

    core box router bit describes this Amana Tool router bit designed to cut half-round grooves, so woodworkers can shape consistent profiles for trim and decorative work. The 3/4 x 1-3/4 x 3/8 radius configuration defines the cutting geometry, which shapes a smooth, rounded channel that reads cleanly in finished moldings and panels. The 3/8 inch radius creates a defined cove depth, giving fluted moldings and panel details a uniform, repeatable look along long runs. The 1/4 inch shank matches common router collets, which helps this bit drop into typical handheld, table-mounted, and CNC router setups without changing machines. The router bit sits in the Profiling class, so its grind and profile focus on shaping visible edges and faces where clean detail matters.

    Key Core Box Bit Details For Real Jobs

    • The 3/8 inch radius core box profile cuts half-round grooves, giving fluted moldings and columns a consistent, repeatable channel that reads even across multiple pieces in the same project.
    • The 3/4 x 1-3/4 sizing defines the working profile and overall bit length, helping installers plan cut depth and pass layout for moldings, columns, millwork, or sign panels.
    • The 1/4 inch shank interfaces with standard 1/4 inch router collets, allowing the same bit to run in handheld, table-mounted, and CNC routers for flexible shop or jobsite setups.
    • The router bit is part of the Profiling product class, so its geometry is tuned for shaping visible surfaces, which supports clean decorative work on finished faces.
    • The design cuts half-round grooves needed for fluted moldings, columns, millwork, and signs, so one bit can cover a range of decorative routing tasks on trim and panels.

    Installation And Routing Use With This Bit

    The 1/4 inch shank on this Amana Tool core box router bit fits routers built for 1/4 inch tooling, which streamlines setup when moving between handheld and table-mounted stations. When used with an edge guide, the bit can cut coves, giving installers a way to run controlled, parallel profiles along edges or panel fields. The ability to run in handheld, table-mounted, and CNC routers means the same 3/8 inch radius groove profile can be produced across different machines, helping shops keep matching details on moldings, columns, and sign work without changing cutting geometry.

    Using This Core Box Router Bit In Wood Projects

    Where This Amana Core Box Bit Applies

    This 3/4 x 1-3/4 x 3/8 radius core box router bit is used to cut half-round grooves for fluted moldings, so trim carpenters can create decorative vertical or horizontal runs on casing, pilasters, or furniture components. The same cutting profile shapes grooves in columns, supporting classic multi-flute looks on architectural posts and interior details. In millwork applications, the bit forms repeatable channels on rails, stiles, or panel fields, creating shadow lines that break up wide surfaces. For sign makers, the 3/8 inch radius groove produces readable, rounded channels in sign substrates, which can help letters or borders stand out visually.

    The bit works in handheld routers, table-mounted routers, and CNC routers, so shops can route shorter or custom pieces by hand while running repetitive parts on a table or CNC using the same geometry. When paired with an edge guide, the core box bit can cut coves, adding another decorative option using the same tool, which reduces tool change time between fluting and coving passes. Because the bit belongs to the Profiling router bits category, its profile is aimed at visible edges and faces, helping decorative moldings, columns, millwork, and signs present a clean finished appearance after routing and finishing.

    Common Questions About This Core Box Router Bit

    What materials is this core box router bit intended to cut?

    The 3/4 x 1-3/4 x 3/8 radius core box router bit is described for moldings, columns, millwork, and signs, so it is aimed at routing groove details in typical woodworking and sign-making stock.

    How does the 3/8 inch radius affect the groove profile?

    The core box router bit uses a 3/8 inch radius to form a half-round groove, producing a defined cove depth that keeps fluted moldings and similar details visually consistent across pieces.

    What routers can use this 1/4 inch shank core box bit?

    The core box router bit has a 1/4 inch shank, so it fits routers designed for 1/4 inch tooling, including handheld, table-mounted, and CNC routers listed in the product description.

    How is this core box bit used for fluted moldings?

    The core box router bit cuts half-round grooves that form the flutes in moldings, allowing multiple parallel passes to create a uniform fluted pattern on trim or column faces.

    Can this router bit also cut coves on edges?

    The core box router bit can cut coves when used with an edge guide, letting installers run controlled, parallel coved profiles along edges or panel faces.

    What does the Profiling router bits classification indicate?

    The router bit is in the Profiling class, indicating its geometry is intended for shaping visible edges and faces, which suits decorative moldings, columns, millwork, and signs.

    Select This Core Box Bit For Precise Profiles

    This Amana Tool 3/4 x 1-3/4 x 3/8 radius core box router bit with a 1/4 inch shank delivers the half-round grooves specified for fluted moldings, columns, millwork, and signs. By using one Profiling-class bit that runs in handheld, table-mounted, and CNC routers, shops and installers can keep groove and cove details consistent across different setups while working directly from a known 3/8 inch radius profile.

    Diameter (in)
    3/4 in
    Shank Diameter (in)
    1/4 in
    Product Type
    Surface Forming Bits
    Number of Flutes
    2
    Radius (in)
    3/8 in
    Overall Length (in)
    1-3/4 in
    Maximum Speed (RPM)
    28000 rpm
    Minimum Cutting Height
    7/16 in
    Supplier Pack Size
    1
    Sold In
    1
    Diameter (in)
    3/4 in
    Shank Diameter (in)
    1/4 in
    Product Type
    Surface Forming Bits
    Number of Flutes
    2
    Radius (in)
    3/8 in
    Overall Length (in)
    1-3/4 in
    Maximum Speed (RPM)
    28000 rpm
    Minimum Cutting Height
    7/16 in
    Supplier Pack Size
    1
    Sold In
    1
    0Cart
    0Cart
    5/8 in3/4 in
    1/4 in1/2 in
    5/16 in3/8 in
    1-5/8 in1-3/4 in2 in
    $66.83/Each
    3/4" x 1-3/4" x 3/8" Radius Core Box Router Bit, 1/4" Shank
    Item# AA45918 / MFR Part # 45918
    Each
    Amana Tool
    Each
    In Stock

    Sold In: 1 Each

    Each

    Additional Accessories

    Quantity
    Unit Price
    Catalog
    Sold in: 1 Each
    AA45900
    Mfr# 45900
    core box router bit 1/16 radius 1/4 shank
    Sold in: 1 Each
    AA45904
    Mfr# 45904
    1/4" x 1-5/8" x 1/8" Radius Core Box Router Bit, 1/4" Shank
    Sold in: 1 Each
    AA45906
    Mfr# 45906
    Amana Tool 45906 Carbide Tipped Core Box 3/16" Radius x 3/8" Dia x 1/4" x 1/4" Shank
    Sold in: 1 Each
    AA45908
    Mfr# 45908
    45908 core box router bit by Amana Tool
    Sold in: 1 Each
    AA45910
    Mfr# 45910
    1/2" x 1-1/2" x 1/4" Radius Core Box Router Bit, 1/4" Shank
    Sold in: 1 Each
    AA45912
    Mfr# 45912
    core box router bit 1/2 inch shank 45912
    Sold in: 1 Each
    AA45914
    Mfr# 45914
    45914 core box router bit by Amana Tool
    Sold in: 1 Each
    AA45920
    Mfr# 45920
    3/4" x 2" x 3/8" Radius Core Box Router Bit, 1/2" Shank
    Sold in: 1 Each
    AA45924
    Mfr# 45924
    Amana Tool 45924 core box bit 1/2 radius
    Sold in: 1 Each
    AA45926
    Mfr# 45926
    1" x 2-1/8" x 1/2" Radius Core Box Router Bit, 1/2" Shank
    Sold in: 1 Each
    AA45928
    Mfr# 45928
    1-1/4" x 2-5/16" x 5/8" Radius Core Box Router Bit, 1/2" Shank