Product Description
CMT Slot Cutter Arbor Without Bearing - 1/2 in. Shank is a precision steel arbor designed to mount CMT 822 series slot cutter blades onto handheld routers, router tables, and CNC routing machines. Built for woodworkers and cabinetmakers who need a clean, stable platform for cutting slots, grooves, and dados in solid wood, plywood, MDF, and laminates, this arbor delivers a reliable connection between the router spindle and the cutter head. The non-bearing configuration gives you flexibility to use your own bearing stops or run the cutter free, making it a versatile component in any slot cutting setup.
Key Features
- Steel construction - durable material resists deflection and wear during repeated slot cutting operations, maintaining consistent cutter alignment over time.
- 1/2 in. shank diameter - fits standard 1/2 in. router collets found on full-size handheld routers, router tables, and CNC machines, giving you broad machine compatibility.
- M8mm arbor diameter - matches the CMT 822 series slot cutter blade bore, ensuring a secure, snug fit that minimizes runout and wobble during cutting.
- Total length of 2-21/32 in. - provides sufficient reach to stack cutter blades or use spacers for varied groove widths without overextending the tool's balance point.
- Relative length of 26mm - usable cutting zone gives you room to position cutter blades accurately for repeatable slot depth and placement.
- Arbor without bearing design - lets you configure the setup to your specific application, whether using an external bearing stop collar or cutting freehand against a fence.
Why This Product
- Specifically designed for CMT 822 series slot cutter blades, this arbor ensures a compatible, purpose-built fit rather than a generic adapter that may introduce slop or misalignment.
- The non-bearing version gives woodworkers and CNC operators the flexibility to build their own bearing or fence-guided setups, avoiding paying for hardware they may not need.
- Steel construction provides the rigidity needed for accurate slot cutting in demanding materials like hardwood, melamine, and chipboard - materials that can stress lesser arbors over repeated use.
- A 1/2 in. shank means this arbor works with the largest, most stable router collet size available, reducing vibration and improving cut quality compared to smaller shank alternatives.
Specifications
- Manufacturer Part Number: 824.127.00
- Brand: CMT Orange Tools
- Diameter: M8mm
- Total Length: 2-21/32 in.
- Relative Length: 26mm
- Shank: 1/2 in.
- Material: Steel
- Product Type: Slot Cutter Arbor Without Bearing
Approved Applications
- Mounting CMT 822 series slot cutter blades on handheld routers
- Router table slot and groove cutting setups
- CNC routing machine slot cutter configurations
- Cutting slots in solid hardwood and softwood
- Grooving plywood, MDF, chipboard, and laminates
- Biscuit joinery and tongue-and-groove assembly preparation
Frequently Asked Questions
Which slot cutter blades are compatible with this arbor?
This arbor is designed for CMT 822 series slot cutter blades. The M8mm arbor diameter corresponds to the bore specification of those cutter heads, ensuring a proper fit and secure blade retention during use.
What is the difference between the bearing and non-bearing versions of this arbor?
The non-bearing version - this arbor - does not include a pilot bearing stop collar. This gives you the flexibility to guide the cutter using a router table fence or an external bearing collar of your choice. The bearing version includes a built-in bearing for freehand edge-guided cuts.
What shank size does this arbor use, and which routers will it fit?
This arbor has a 1/2 in. shank, which fits 1/2 in. collets found on full-size handheld routers, router tables, and CNC routing machines. It is not compatible with routers that only accept 1/4 in. or 3/8 in. collets.
Can I use this arbor to cut slots of different widths?
Yes. Because the arbor has a relative length of 26mm and a total usable reach of 2-21/32 in., you can stack multiple CMT 822 series cutter blades along the arbor with spacers between them to achieve wider slot widths in a single pass.
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