Product Description
The CMT 824.122.00 Slot Cutter Arbor is a precision-machined steel arbor designed to mount CMT 823 series slot cutter blades onto handheld routers, router tables, and CNC routing machines. With a 1/2 in. shank and a compact 8mm arbor diameter, this bearing-free version gives woodworkers and cabinet makers direct control over slot cutter blade positioning for biscuit joinery setups, groove cutting, and decorative slot work across a wide range of wood-based materials.
Key Features
- Steel construction - provides the rigidity and durability needed to transmit high rotational forces to slot cutter blades without flex or vibration, supporting consistent, repeatable results.
- 8mm arbor diameter - sized to accept CMT 823 series slot cutter blades precisely, eliminating slop and runout that could cause inaccurate groove depth or ragged cut edges.
- 1/2 in. shank - fits standard 1/2 in. router collets found on most full-size handheld routers and router tables, making this arbor broadly compatible with common workshop setups.
- 2 13/32 in. total length - provides sufficient reach to stack cutter blades or accommodate blade thickness variation while keeping the assembly compact and stable in the collet.
- 11mm relative length (LB) - the usable blade-mounting length allows proper seating of 823 series cutter blades for secure, vibration-free operation.
- Without bearing design - the bearing-free configuration lets users set cutting depth freely using the router fence or table setup rather than relying on a fixed bearing guide, adding versatility for custom groove depths.
Why This Product
- Engineered specifically for CMT 823 series slot cutter blades, this arbor ensures a purpose-matched fit that generic arbors cannot guarantee - reducing vibration and improving cut quality in hardwood, softwood, plywood, and MDF applications.
- The bearing-free design gives router operators full control over groove depth using a fence or router table stop, making it the right choice when multiple groove depths are needed from a single setup.
- The 1/2 in. shank provides maximum collet engagement for stability at router operating speeds, which is critical when running slot cutter blades through dense hardwoods or laminated panels.
- At 2 13/32 in. total length, the arbor keeps the cutter assembly tight to the router collet, reducing leverage-induced runout and helping produce clean, consistent slots across long workpiece runs.
Specifications
- Manufacturer Part Number: 824.122.00
- Brand: CMT Orange Tools
- Product Type: Slot Cutter Arbor without Bearing
- Diameter: 8mm
- Total Length: 2 13/32 in.
- Relative Length: 11mm
- Shank: 1/2 in.
- Material: Steel
- Compatible Blade Series: CMT 823 Slot Cutters
Approved Applications
- Mounting CMT 823 series slot cutter blades
- Biscuit joinery setup on router tables and handheld routers
- Groove and slot cutting in solid hardwood and softwood
- Slot routing in plywood, MDF, chipboard, and laminates
- Decorative slot work in melamine and plastic panels
- CNC routing machine slot cutter operations
Frequently Asked Questions
Which slot cutter blades are compatible with the CMT 824.122.00 arbor?
This arbor is designed for use with CMT 823 series slot cutter blades. The 8mm arbor diameter and 11mm relative length are sized to properly seat those blades for secure, wobble-free operation.
What is the difference between the bearing and non-bearing versions of this arbor?
The CMT 824.122.00 is the version without a bearing. Without a bearing guide, cutting depth is controlled by the router fence or table stop rather than by a fixed-diameter bearing rolling along the workpiece. This gives the user flexibility to set custom groove depths without being limited to a single fixed depth.
Will this arbor fit my router?
Yes, as long as your router accepts a 1/2 in. shank. Most full-size handheld routers and router tables include a 1/2 in. collet, making this arbor compatible with the majority of standard workshop routers as well as CNC routing machines configured for 1/2 in. tooling.
Can this arbor be used to stack multiple slot cutter blades?
The arbor has a total length of 2 13/32 in. and an 11mm relative blade-mounting length. Whether stacking blades is possible depends on the combined thickness of the specific CMT 823 series blades and any spacers used. Consult the CMT 823 series blade specifications to confirm compatibility with your intended stacked configuration.
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