Product Description
CMT Mortising Bit with Bearing - 1-1/4" Diameter, 7/32" Cutting Height, 1/2" Shank is a precision hinge mortising router bit engineered for woodworkers who demand clean, flat-bottom mortise slots with zero tear-out. Designed by CMT for use in handheld routers, router tables, and CNC routing machines, this right-hand carbide-tipped bit pairs thick carbide tips with a negative shear angle geometry and a top bearing guide - making it equally capable for hinge mortising, lock pocket routing, template work, and sign making on solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic.
Key Features
- Thick carbide tips with negative shear angle design - delivers flawless cut performance with no splintered edges or rough bottoms, so mortise slots come out clean and ready for hardware fitting without additional cleanup.
- Top bearing guide included - allows the bit to follow templates precisely, making it a reliable choice for repeatable hinge mortising, sign making, and pattern routing where consistent depth and position are critical.
- Hardmetal (HW) carbide-tipped construction - resists wear during prolonged cuts through both natural wood and demanding wood composites, extending the working life of the bit between sharpenings.
- 2-flute (2-tooth) configuration - balances cutting speed with chip clearance, keeping the mortise bottom flat and reducing heat buildup during slot routing passes.
- 1/2" shank diameter - provides a secure, rigid connection to full-size router collets, minimizing vibration and deflection during hinge pocket and lock mortise cuts.
- Right-hand rotation - compatible with standard router spindle direction for straightforward setup on routers and router tables without any special tooling adjustments.
Why This Product
- The negative shear angle geometry and thick carbide tips work together to eliminate the splintering and rough bottoms that plague standard bits when routing hinge mortises - giving you hardware-ready results on the first pass.
- The integrated top bearing guide transforms this bit into a versatile template-following tool beyond simple mortising, supporting sign making, inlay work, and pattern routing without purchasing a separate flush-trim or pattern bit.
- With compatibility across solid hardwood, softwood, MDF, chipboard, laminates, melamine, and plastic, this bit covers a wide range of cabinet, door, and fixture applications with a single tool change.
- The 1/2" shank paired with a 2-flute design makes this bit appropriate for router table use, CNC setups, and handheld hinge mortising jigs - giving woodworkers flexibility across different workflows.
Specifications
- Manufacturer Part Number: 801.818.11B
- Brand: CMT Orange Tools
- Product Type: Mortising Bit with Bearing
- Diameter: 1-1/4"
- Cutting Height: 7/32"
- Total Length: 2-31/64"
- Shank: 1/2"
- Number of Teeth: 2
- Material: Hardmetal (HW) Carbide-Tipped
- Rotation: Right-Hand (RH)
Approved Applications
- Hinge mortising
- Lock pocket mortising
- Slot mortising
- Template and pattern routing
- Sign making
- Mortise routing in solid hardwood and softwood
- Mortise routing in plywood, MDF, chipboard, laminates, melamine, and plastic
Frequently Asked Questions
What types of materials can this mortising bit cut?
This bit is designed for use on solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic. The thick carbide tips and negative shear angle design handle both natural wood and wood composites without splintering or leaving rough bottoms.
What is the purpose of the top bearing guide on this bit?
The top bearing guide allows the bit to ride along a template or straight edge, making it ideal for template work and sign making in addition to standard hinge mortising. This enables repeatable, precise cuts when used with a router template or jig.
What routers and machines are compatible with this bit?
This bit features a 1/2" shank and right-hand rotation, making it compatible with full-size handheld routers, router tables, and CNC routing machines that accept a 1/2" collet and use standard right-hand rotation.
What is the cutting height of this mortising bit, and is it suitable for hinge mortising?
The cutting height is 7/32". Combined with the 1-1/4" diameter and the negative shear angle design, this bit is specifically engineered for hinge mortising and lock pocket routing, producing clean flat-bottom mortise slots without splintered edges.
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