Product Description
CMT Mortising Bit with Bearing - 3/4 in. Diameter, 3/4 in. Cutting Height, 1/4 in. Shank by CMT is a precision carbide-tipped routing tool engineered for clean, flat-bottom mortise cuts in solid hardwood, softwood, and wood composites. Whether you are routing hinge pockets, lock mortises, or working with templates for sign making, this right-hand rotation bit delivers smooth, splinter-free results thanks to its negative shear angle design and thick carbide tips. The integrated top bearing guide makes it equally capable as a pattern-following bit for template routing and sign work, giving woodworkers and CNC operators a versatile tool for both production and finish routing tasks.
Key Features
- Thick Carbide Tips (HW Material) - Industrial-grade hard metal carbide tips resist wear and maintain a sharp cutting edge longer, reducing the need for frequent resharpening during demanding mortising operations.
- Negative Shear Angle Design - Pulls cutting forces downward into the workpiece, producing clean, splinter-free edges and flat, smooth mortise bottoms in both natural wood and wood composites.
- Top Bearing Guide Included - The integrated top bearing allows the bit to follow a template or pattern precisely, making it ideal for consistent hinge mortising, sign making, and repetitive template routing tasks without a fence or guide rail.
- 2-Flute Configuration - Two cutting edges balance chip clearance and cut quality, allowing efficient material removal while keeping the bit stable in handheld routers, router tables, and CNC routing machines.
- 1/4 in. Shank - Fits a wide range of standard collets found on compact and full-size handheld routers, providing broad machine compatibility for professional and hobbyist setups alike.
- Right-Hand Rotation - Designed for standard router operation, ensuring consistent, predictable performance when used in conventional router direction without modification.
Why This Product
- The negative shear angle design paired with thick carbide tips eliminates splintered edges and rough bottoms in hinge pockets - a common problem with lower-quality mortising bits - so hinges seat flush and fit without extra cleanup work.
- The top bearing guide opens up template routing and sign making applications beyond basic mortising, making this a multi-purpose bit rather than a single-task tool.
- A 3/4 in. diameter matched to a 3/4 in. cutting height produces a perfectly square mortise profile in a single pass, minimizing setup time and repositioning when routing standard hinge pockets.
- The 1/4 in. shank makes this bit accessible to a broad range of routers - from compact trim routers to full-size router table setups and CNC routing machines - without requiring a separate collet adapter.
Specifications
- Manufacturer Part Number: 801.190.11B
- Brand: CMT Orange Tools
- Diameter: 3/4 in.
- Cutting Height: 3/4 in.
- Total Length: 2-1/8 in.
- Shank: 1/4 in.
- Number of Teeth: 2
- Rotation: Right-Hand (RH)
- Material: Carbide-Tipped (HW)
- Product Type: Mortising Bit with Bearing
Approved Applications
- Hinge Mortising
- Lock Pocket Routing
- Slot Mortising
- Template Routing
- Sign Making
- Loose-Tenon Joinery Preparation
Frequently Asked Questions
What makes this bit suitable for template routing and sign making?
This mortising bit comes equipped with a top bearing guide that rides along the edge of a template or pattern, allowing the bit to follow the shape precisely without a fence or guide rail. This makes it well suited for repeatable hinge pocket layouts, decorative sign routing, and any template-guided application where consistent results are needed across multiple workpieces.
Can this bit be used in a CNC routing machine, or is it only for handheld routers?
This bit is compatible with handheld routers, router tables, and CNC routing machines. The 1/4 in. shank fits standard collets commonly found across all three machine types, and the right-hand rotation matches conventional router spindle direction used in most CNC setups.
What materials can this mortising bit cut?
The thick carbide tips and negative shear angle design allow this bit to cut cleanly through solid hardwood, softwood, plywood, MDF, chipboard, laminates, melamine, and plastic. It is designed to handle both natural wood and wood composites without splintered edges or rough bottoms.
Does the 3/4 in. diameter match the 3/4 in. cutting height for routing standard hinge mortises in a single pass?
Yes. The 3/4 in. diameter and 3/4 in. cutting height are matched to produce a square-profile mortise pocket in a single routing pass. This makes the bit particularly well suited for routing standard butt hinge mortises where a consistent depth and width are required without multiple passes or repositioning.
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