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3/8 in carbide tipped keyhole bit describes this Bosch router bit that cuts mounting slots in picture frames, plaques, and other wall decorations, so you can create clean, repeatable hanging points in wood projects. The bit uses a control cut design that helps minimize kickback, which supports steadier handling during routing. A plunge tip design lets the bit enter the surface directly, so you can start keyhole slots anywhere on the workpiece rather than only from an edge. The large diameter is 3/8 in and the small diameter is 3/16 in, which produces a keyhole shape sized for common wall-mount hanging hardware. A cutting edge length of 7/16 in gives enough depth to create a secure slot for mounting while keeping the cut compact in thinner stock. The bit belongs to the Bosch CNC Insert V-Groove Router Bits family and fits into standard workflows that use a dedicated keyhole profile.
This Bosch keyhole router bit has a large cutting diameter of 3/8 in and a small diameter of 3/16 in, which defines the finished keyhole slot size and helps match it to typical wall-mount fasteners. The cutting edge length is 7/16 in and the flute length is 0.375 in, so you can plan slot depth to keep plenty of material behind the cut on plaques and frames. A 1/4 in shank diameter allows the bit to seat in many handheld and table-mounted routers that use this standard collet size, supporting quick changeover in mixed tooling setups. The overall length is listed as 1-9/16 in and also as 1.5 in, both describing a compact bit body that stays close to the collet for better control during short plunge cuts.
This router bit is described as a 3/8 in carbide tipped keyhole bit used for routing mounting slots in picture frames, plaques, and other wall decorations, so it is oriented toward wall-hung wood projects. The keyhole profile lets the mounting fastener slide into the narrow neck and seat in the wider pocket, giving a concealed hanging point on the back of the workpiece. The plunge tip design supports starting the cut directly on the back face of a frame or plaque, which helps position mounting locations precisely where they are needed. Because the bit is part of the cabinet joinery class of router bits, it fits naturally into workflows building decorative cabinetry, display pieces, and similar woodworking projects that need reliable wall mounting.
The control cut design helps minimize kickback, which contributes to more predictable handling when plunging and moving the bit along a short slot path. Wide and narrow flute design requires lower feed rates to prevent breakage, encouraging a slower, more controlled advance that supports clean walls inside the keyhole slot. Micrograin carbide tips provide superior wear resistance and long life, so the cutting edges hold their profile across many slots, which helps keep the mounting recess shape consistent from piece to piece. The specified large 3/8 in diameter and small 3/16 in diameter define a repeatable keyhole geometry, which supports uniform hanging behavior across a production run. A compact overall length and 1/4 in shank diameter keep the bit close to the collet, which supports smoother tracking and less deflection during careful plunge operations on smaller workpieces.
The Bosch 85608M keyhole bit is used for routing mounting slots in picture frames, plaques, and other wall decorations, so wood pieces can hang flush on fasteners.
The control cut design helps minimize kickback, which supports steadier handling and smoother movement when plunging and guiding the bit along short mounting slots.
This router bit has a 3/8 in large diameter and a 3/16 in small diameter, producing a keyhole slot sized for many common wall-mount fasteners used with frames and plaques.
The wide and narrow flute design requires lower feed rates to prevent breakage, which encourages slower passes that protect the bit and help maintain a smooth slot surface.
The micrograin carbide tip provides superior wear resistance and long life, so the cutting edges stay sharper over more mounting slots before replacement is needed.
The Bosch keyhole router bit uses a 1/4 in shank diameter, fitting routers and collets sized for this common shank standard in many woodworking shops.
The Bosch 85608M keyhole router bit combines a 3/8 in carbide tipped keyhole profile, plunge tip design, and control cut geometry to support accurate mounting slots in frames, plaques, and wall decorations. Micrograin carbide tips and a 1/4 in shank diameter integrate well into shop routing setups focused on decorative and cabinet joinery work. Order this Bosch keyhole router bit from Wurth Baer Supply to add a dedicated mounting-slot cutter to your routing tool lineup.
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