CMT Orange ToolsSKU: CMT-541.524.00

CMT 541.524.00 Spacer Diameter: 12/21 x 1mm


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Product Description

The CMT 541.524.00 Spacer is a precision-ground assembly spacer designed to deliver accurate tool positioning and repeatable results when stacking or spacing cutter heads and tooling on a spindle. With an outer diameter of 21mm, a 12mm bore, and a plate thickness of exactly 1mm, this compact spacer gives woodworkers and machinists the fine-tuned control they need when configuring cutter assemblies for clean, consistent cuts.

Key Features

  • 21mm outer diameter - sized to fit precisely within cutter head assemblies, reducing wobble and ensuring a stable, centered fit around the spindle arrangement.
  • 12mm bore diameter - matches standard 12mm spindle or arbor sizes, allowing the spacer to seat firmly without play for reliable, repeatable positioning.
  • 1mm plate thickness - provides fine incremental adjustment of tool position along the spindle, so you can dial in exact cutter spacing without overshooting your target dimension.
  • Designed for assembly use - purpose-built as a spacer for cutter head assembly configurations, making it straightforward to stack multiple cutters or bore reducers to a desired width.

Why This Product

  • The slim 1mm thickness makes this spacer ideal for fine-increment adjustments when stacking cutter heads - giving you precise control over tool position that thicker spacers simply cannot offer.
  • The 12mm bore and 21mm outer diameter combination targets a specific and common spindle sizing, meaning this spacer fits cleanly without modification or improvisation in compatible assemblies.
  • As a dedicated CMT assembly spacer, it is purpose-built to work within cutter head tooling systems, reducing the risk of misalignment that can come from using generic or improvised shims.
  • The precision-ground construction holds tight tolerances, so each spacer performs consistently - critical when stacking multiple spacers to achieve a cumulative target width.

Specifications

  • Manufacturer Part Number: 541.524.00
  • Brand: CMT Orange Tools
  • Outer Diameter: 21mm
  • Bore Diameter: 12mm
  • Plate Thickness: 1mm
  • Product Type: Spacer for Assembly
  • Status: Active

Approved Applications

  • Adjusting tool position along the spindle in cutter head assemblies
  • Stacking cutter heads to achieve a desired combined width
  • Fine-increment spacing between tooling components on a 12mm bore arbor

Frequently Asked Questions

What are the exact dimensions of this spacer?

This spacer has an outer diameter of 21mm, a bore diameter of 12mm, and a plate thickness of 1mm. These dimensions are designed for precise fit within compatible cutter head and tooling assemblies.

What is this spacer used for?

This spacer is used for assembly purposes - specifically for adjusting the position of cutter heads and other tooling along a spindle or arbor, and for stacking cutters to reach a desired total width. The 1mm thickness allows for fine, incremental adjustments.

Can I stack multiple spacers to achieve a larger gap?

Yes. Because each spacer is precision-ground to a consistent 1mm thickness, multiple spacers can be stacked together to achieve a cumulative spacing value in 1mm increments, provided the combined stack remains within the capacity of your tooling setup.

What bore size does this spacer fit?

This spacer has a 12mm bore diameter, making it compatible with spindles and arbors that measure 12mm in diameter. Always verify the bore diameter of your specific tooling setup before ordering to ensure a proper fit.

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