1-5/8 2-wing tongue groove bit from Amana Tool is a router bit assembly for cutting tongue-and-groove joints in cabinet joinery and similar woodworking. It is a router bit designed for use in a table-mounted router, so stock feeds against a fixed tool for better control on longer pieces. The assembly cuts tongue-and-groove joints on stock between 1/2 inch and 3/4 inch thick, covering common panel and frame material thicknesses in cabinet shops. The tool is a tongue-and-groove assembly router bit, so one setup handles both tongues and grooves by changing the stack. As a product in the router bits class, it fits into workflows where a single bit handles matched joint cuts instead of swapping separate cutters.
This Amana Tool tongue-and-groove assembly is specified for use with a table-mounted router, so the bit stays fixed while workpieces move across the table for steadier control on joint runs. The router bit uses a 1/2 inch shank, so it fits routers with a 1/2 inch collet that match this shank size, giving a solid grip during cutting. To cut tongues, the instruction is to sandwich one bearing between the two cutters on the arbor, which positions the cutters to form the tongue shoulders and thickness in one pass along the edge. To cut slots, mount one cutter between the two bearings, so the cutter removes stock in the center while the bearings define groove location in relation to the reference surface.
The 1-5/8 inch 2-wing tongue/groove assembly bit sits in the cabinet joinery category, so it targets frame, panel, and similar edge-joining tasks in woodworking. With a cutting range suited to stock between 1/2 inch and 3/4 inch thick, it aligns with many case sides, shelves, and door parts used in cabinet projects. As a router bit from Amana Tool with an arbor, slotting cutters, and bearings, it serves in shops that rely on a table-mounted router instead of a shaper for tongue-and-groove work. The 1/2 inch shank specification supports use in heavier routers that accept this shank size, helping the assembly stay stable while passing cabinet parts and panels across the table surface.
The Amana Tool 55400 tongue-and-groove assembly uses two identical, removable slotting cutters, so both the tongue and groove share the same cutter geometry, which supports consistent fit when parts are run from the same setup. When cutting tongues by sandwiching one bearing between the two cutters, the bearing and cutter stack work together to define tongue thickness and shoulder location, helping repeat cuts across multiple pieces without changing cutters. When cutting slots by mounting one cutter between the two bearings, the bearings define the groove path while the cutter clears the material, which keeps groove position consistent relative to the workpiece edge. The arbor with integral shank holds all components on a single shaft, so assembly changes focus on repositioning cutters and bearings rather than aligning separate arbors, supporting efficient workflow in cabinet joinery runs where many joints share the same layout.
The 1-5/8 inch 2-wing tongue/groove assembly bit is specified for stock between 1/2 inch and 3/4 inch thick, so it suits many cabinet and casework panel and frame parts.
The 55400 assembly cuts tongues by placing one bearing between two identical cutters, and cuts slots by placing one cutter between two bearings, so joint type changes by re-stacking components.
The Amana Tool tongue/groove assembly bit uses a 1/2 inch shank, fitting routers designed for this shank size and supporting a solid grip in a 1/2 inch collet.
The two slotting cutters on the 55400 are identical, so the same cutting profile forms both tongues and grooves, which helps produce matching joints from one bit system.
The assembly is described for use with a table-mounted router, so the bit stays fixed while stock moves, supporting controlled, straight tongue-and-groove passes.
The tongue-and-groove assembly consists of an arbor with an integral shank, two identical removable slotting cutters, and a pair of bearings, forming a configurable joint-cutting stack.
The Amana Tool 1-5/8 inch 2-wing tongue/groove assembly bit with 1/2 inch shank provides a single router bit system for tongue-and-groove joints on stock between 1/2 inch and 3/4 inch thick. The arbor with integral shank, two identical removable slotting cutters, and a pair of bearings form a configurable assembly that cuts both tongues and grooves on a table-mounted router. For cabinet joinery tasks that repeat the same joint profile across many parts, this 55400 tongue-and-groove assembly offers a defined method to alternate between groove and tongue cuts by rearranging cutters and bearings on one shaft.