Product Description
The CMT 541.551.00 Spacer is a precision-ground shim component designed for use with CMT cutter head assemblies and related tooling systems. With an outer diameter of 15.8mm, a bore diameter of 5.2mm, and a plate thickness of 2.5mm, this compact spacer gives woodworkers and machinists the fine control they need to position cutters accurately on a spindle, stack cutting heads to a desired combined width, or fine-tune tool alignment during cutter head assembly. When exact tool placement matters, a precisely dimensioned spacer like this one makes the difference between acceptable results and repeatable, professional-grade cuts.
Key Features
- 15.8mm outer diameter - sized to fit correctly within CMT cutter head assemblies, keeping the spacer properly captured and aligned during operation
- 5.2mm bore diameter - matches the spindle or arbor shaft specification it is designed around, ensuring a snug, centered fit that prevents wobble or misalignment
- 2.5mm plate thickness - provides a precise, known offset value so you can stack multiple spacers or combine with other shim components to dial in the exact tool position you need
- Functions as a shield for assembly - protects adjacent tooling components during assembly, reducing the risk of damage to cutting edges or mating surfaces while setting up the cutter head
- Precision-ground construction - tight dimensional tolerances mean consistent, repeatable tool positioning every time you set up or change cutters, reducing setup time and guesswork
Why This Product
- When assembling a cutter head stack, small dimensional errors add up quickly - a spacer ground to exact 2.5mm thickness gives you a reliable, measurable reference point so your final tool position matches your layout every time
- The 5.2mm bore is purpose-matched to compatible CMT tooling spindle dimensions, which means no improvised shimming or undersized-bore workarounds that can introduce runout or vibration
- Its dual role as a spacer and an assembly shield means it does more than fill a gap - it actively protects cutter edges and mating surfaces during the assembly process, preserving the sharpness and integrity of your tooling investment
- A compact 15.8mm outer diameter keeps the spacer contained within the cutter head profile, so it integrates cleanly into existing CMT tooling setups without interfering with surrounding components
Specifications
- Manufacturer Part Number: 541.551.00
- Brand: CMT Orange Tools
- Diameter: 15.8mm
- Bore Diameter: 5.2mm
- Plate Thickness: 2.5mm
- Product Type: Spacer
Approved Applications
- Adjusting tool position on spindle or arbor within cutter head assemblies
- Stacking cutters to achieve a desired combined cutting width
- Shielding adjacent components during cutter head assembly to protect cutting edges and mating surfaces
Frequently Asked Questions
What are the exact dimensions of this spacer?
This spacer has an outer diameter of 15.8mm, a bore diameter of 5.2mm, and a plate thickness of 2.5mm. All three dimensions are precision-ground to ensure accurate, repeatable tool positioning in cutter head assemblies.
What is the purpose of the 5.2mm bore diameter?
The 5.2mm bore is sized to fit a compatible spindle or arbor shaft. This ensures the spacer seats centered on the shaft, preventing off-center placement that could introduce runout or vibration during operation.
Can this spacer be stacked with other spacers to achieve a custom offset?
Yes. Because the plate thickness is a precise 2.5mm, multiple spacers can be combined to build up a known total offset. This makes it straightforward to position cutters or separate tooling components to an exact specification without guessing.
What does the shield-for-assembly function mean in practice?
During cutter head assembly, the spacer acts as a protective barrier between adjacent components, helping to guard cutting edges and mating surfaces from contact damage while the assembly is being configured or tightened.
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