5/16" - 24 NF x 2-3/8" Router Arbor with Hex Nut/Washer, 1/2" Shank

Router Arbor With Hex Nut Washer For Precision Grooves

Router arbor with hex nut washer is designed for groove work where consistent alignment of slotting cutters matters. This Amana Tool router arbor is built for use in a handheld or table-mounted router, so it supports both shop and on-site setups. The 1/2 inch shank engages firmly in standard 1/2 inch collets, which helps keep the assembly running true during slotting passes. Its 5/16-24 NF diameter thread accepts compatible cutter stacks, allowing installers to configure slotting heads for specific materials. A cutting length of 2-3/8 inches provides room for 2 and 3-wing slotting assemblies or a single 4-wing trim cutter, so one arbor can support multiple joinery and trim operations. This router arbor is specified for applications such as grooving edges for T-moldings, splines, biscuits, and tongue-and-groove joints, tying the hardware directly to common production tasks.

Key Arbor Details That Support Joinery Work

• The 5/16-24 NF diameter thread lets slotting cutters seat accurately on the arbor, which supports smooth-running cutter stacks during groove and trim operations.
• The 1/2 inch shank size matches routers with 1/2 inch collets, which helps transmit power efficiently from the router to the cutting assembly during repeat passes.
• The 2-3/8 inch cutting length provides working room for 2 and 3-wing slotting assemblies, so installers can configure groove depth and cutter combinations for specific profiles.
• The arbor is specified for single 4-wing trim cutter assemblies, allowing it to handle edge trimming tasks as well as slotting within the same shank interface.
• The hex nut and washer secure the cutter stack on the threaded section, helping maintain stack position during tongue-and-groove and spline routing passes.

Installation Fit For Handheld And Table Routers

This 1/2 inch shank router arbor is rated for use in both handheld and table-mounted routers, so it adapts to bench work and larger production stations. The straight 1/2 inch shank simplifies setup in routers designed for that collet size, reducing the steps needed to seat the arbor. Once installed, the 5/16-24 NF threaded section provides a defined mounting interface for compatible slotting cutters, which supports repeatable cutter stack alignment. The 2-3/8 inch cutting length keeps the cutter assembly within a predictable working envelope, useful when setting fence positions or depth stops. With a hex nut and washer securing the assembly, the arbor stays configured between passes, which supports consistent results across a run of grooves or trim cuts.

Using This Amana Tool Router Arbor In Woodworking

Where This Router Arbor Fits Into Routing Tasks

This Amana Tool router arbor is specified for groove edges for T-moldings, so it fits into jobs where a controlled slot must hold molding profiles securely. The same arbor handles splines and biscuit groove work, tying directly into panel joining and edge reinforcement tasks. When used to rout tongue-and-groove joinery, the 2 and 3-wing slotting assemblies on this arbor help create mating profiles across boards or panels. The arbor also supports single 4-wing trim cutter assemblies, so it can be used on edge trimming work where a uniform reveal or flush surface is needed. In a handheld router, this flexibility supports on-site fitting, while in a table-mounted router it serves production runs where repeatable groove spacing and trim passes are required.

How Arbor Dimensions Support Consistent Cutter Alignment

The 5/16-24 NF diameter specification defines the threaded portion that accepts 2 and 3-wing slotting assemblies, which allows cutters to stack consistently for repeatable groove widths. A 1-3/8 inch dimension noted as A relates to the working layout of the arbor, helping place cutter position relative to the shank for fence and guide setup. The B value of 1 inch connects to the usable span for cutters on the threaded portion, which influences how many elements can be positioned on the arbor for specific joints. With a cutting length of 2-3/8 inches, there is sufficient projection to clear workpieces while still keeping the assembly compact for control. Together, these dimensions support a predictable relationship between router, arbor, and cutting stack, which matters when repeating tongue-and-groove, T-molding, or spline grooves across multiple parts.

Common Questions About The 47604 Router Arbor

Select This Router Arbor For Targeted Groove Work

The 47604 Amana Tool router arbor brings a 1/2 inch shank, 5/16-24 NF threaded diameter, and 2-3/8 inch cutting length together for T-molding, spline, biscuit, and tongue-and-groove applications. At Wurth Baer Supply, this arbor sits in the Bits and Blades Accessories and Replacement Parts class, making it a match when a threaded router arbor is needed for 2 and 3-wing slotting assemblies or a single 4-wing trim cutter. Choose this configuration when a defined interface between router, arbor, and slotting cutters matters for repeatable groove and trim results.