Product Description
CMT Bore Reducers - 30mm to 1" are precision-ground adapter rings designed to fit cutter heads and saw blades with a 30mm bore onto 1" spindles or arbors. Sold as a pair, these CMT bore reducers ensure centered, secure tool mounting on spindle moulders, shapers, and table saws - giving woodworkers and production shops the flexibility to run 30mm-bore tooling on 1" machine arbors without purchasing dedicated cutters for each setup.
Key Features
- Adapts a 30mm bore down to a 1" (25.4mm) bore - allows 30mm-bore cutter heads and saw blades to mount accurately on 1" spindle and arbor machines, expanding tooling compatibility.
- Sold and installed in pairs - using both reducers simultaneously ensures the tool is centered and balanced on the arbor, which is essential for safe, vibration-free operation.
- Precision-ground fit - close manufacturing tolerances mean accurate tool centering, reducing runout and helping maintain cut quality and workpiece accuracy.
Why This Product
- If you own 30mm-bore tooling but run a machine with a 1" arbor, these reducers eliminate the need to buy duplicate cutters - one pair converts your existing heads for immediate use on spindle moulders, shapers, or table saws.
- Because CMT bore reducers are precision-ground and must be used in matched pairs, they deliver the centered, stable tool mounting that high-speed rotating equipment demands - reducing the risk of tool movement or imbalance during a cut.
Specifications
- Manufacturer Part Number: 699.030.26
- Brand: CMT Orange Tools
- Outside Diameter: 30mm
- Bore Diameter: 25.4mm (1")
- Quantity: 2 pieces (pair - must be used together)
Approved Applications
- Spindle Moulder
- Shaper
- Table Saw
- Bore Reduction
- Tool Mounting
What's Included
- 2x Bore Reducers (30mm outer diameter, 1" / 25.4mm bore)
Frequently Asked Questions
Can I use just one bore reducer instead of the pair?
No. These bore reducers must always be installed in pairs. Using only one reducer would result in an off-center, unbalanced tool mount, which is unsafe at the rotational speeds of a spindle moulder, shaper, or table saw. Always install both reducers together.
What bore sizes does this reducer adapt between?
This reducer set adapts from a 30mm outside diameter (fitting into a 30mm-bore cutter head or saw blade) down to a 1" (25.4mm) bore, allowing 30mm-bore tooling to mount on a 1" machine arbor or spindle.
What types of machines are these bore reducers compatible with?
These CMT bore reducers are designed for use on spindle moulders, shapers, and table saws where the machine spindle or arbor is 1" and the cutter head or blade has a 30mm bore.
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