Product Description
The CMT 799.001.00 Bushing 3/8" - 1/2" by CMT is a precision reduction bushing designed to adapt bearing and collet bore sizes on CMT router bits and tooling. Machined from steel, this compact adapter lets woodworkers and shop professionals fit 3/8" shank tooling into 1/2" collets or bearing seats without play or wobble - keeping cuts accurate and tool positioning consistent across router and router table setups.
Key Features
- Reduction bushing for bearing use - adapts CMT bearing and collet bore sizes so you can use a wider range of tooling without swapping out entire bit sets or collets.
- Steel construction - provides the strength and rigidity needed to maintain a secure, stable fit under the rotational demands of router operation, resisting deformation during extended use.
- Precision ground finish - ensures an accurate, wobble-free mount so the router bit runs true, reducing vibration and improving cut quality at the workpiece.
- 1/2" outer diameter with 9.5mm bore - the bore dimension corresponds to a 3/8" shank, making this a direct adapter between common router collet sizes with no guesswork required.
- 25mm total length - provides sufficient engagement depth to seat securely in the bearing or collet, preventing slippage during operation.
Why This Product
- Solves the common problem of mismatched collet and shank sizes - instead of purchasing duplicate bits in different shank diameters, this steel bushing bridges the gap between 3/8" and 1/2" tooling in a single compact piece.
- Precision-ground steel construction means the adapter fits snugly without introducing runout, so cut accuracy is not compromised by the added adapter.
- Compatible with both router and router table setups, making it a versatile shop accessory that works across multiple machine configurations.
- The 25mm length and 9.5mm bore are sized to work with CMT router bits and tooling, making it a purpose-built fit rather than a generic workaround.
Specifications
- Manufacturer Part Number: 799.001.00
- Brand: CMT Orange Tools
- Description: Bushing 3/8" - 1/2"
- Outer Diameter: 1/2"
- Bore Diameter: 9.5mm
- Total Length: 25mm
- Material: Steel
- Product Type: Reduction Bushing
Approved Applications
- Adapting 3/8" bearing or collet bore sizes to 1/2" on CMT router bits and tooling
- Router setups requiring bore size reduction for accurate tool positioning
- Router table configurations using CMT tooling with mixed shank sizes
Frequently Asked Questions
What does this bushing actually do?
The CMT 799.001.00 is a reduction bushing that adapts a 3/8" bore (9.5mm) to a 1/2" outer diameter. This allows CMT router bits or bearings with a 3/8" bore to be used in applications sized for a 1/2" fit, without the need for a separate collet or tool set.
Is this bushing compatible with all routers, or only specific models?
This bushing is designed for use with CMT router bits and tooling. It is suited for both handheld router and router table setups where a 3/8" to 1/2" bore reduction is needed at the bearing or collet seat.
Will this bushing introduce runout or affect cut accuracy?
Because the bushing is precision ground from steel, it is designed to seat accurately without introducing wobble or runout. A properly ground fit means the tool runs true to its intended axis, which helps maintain cut quality at the workpiece.
What material is this bushing made from, and why does it matter?
The 799.001.00 is machined from steel, which provides the rigidity and durability needed to hold its shape and dimensions under the rotational forces generated during routing. A steel bushing resists deformation better than softer materials, helping maintain a secure fit over repeated use.
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