Precision Brand 24160 Steel Arbor Spacer Set 19 Piece

Product Description

The PRECISION BRAND 24160 is a 19-piece steel machine tool arbor spacer set designed to precisely position and separate cutting tools on arbors and spindles. The set spans a thickness range of 0.001 to 0.125 inches, giving machinists fine control over tool spacing in a single organized kit. Each spacer features a 5/8-inch inside diameter, a 1-inch outside diameter, and a 3/16-inch keyway width to maintain positive rotational alignment during operation. These spacers are manufactured from steel for durability under the lateral and radial forces generated by milling, sawing, and grinding operations. Machinists, toolroom technicians, and production machine operators install these spacers as part of arbor assembly setups on horizontal and vertical milling machines and similar spindle-driven equipment.

This spacer set is suited for use with gang cutters, milling cutters, grinding tools, slitting blades, and circular saws mounted on standard arbors. The keyway slot locks each spacer to the arbor key, preventing rotation under cutting loads. The 19-piece assortment allows operators to achieve a wide range of custom stack heights without sourcing individual spacers separately, making the set practical for both production shops and toolroom applications where arbor configurations change frequently.

Key Features

• 19-piece set covers thickness range from 0.001 to 0.125 inches for fine and coarse spacing adjustments
• 5/8-inch inside diameter fits standard arbor shanks of that size
• 1-inch outside diameter provides adequate bearing surface for cutting tool hubs
• 3/16-inch keyway slot maintains positive rotational alignment with the arbor key
• Steel construction handles the mechanical loads of milling, sawing, and grinding operations
• Compatible with gang cutters, milling cutters, slitting blades, circular saws, and grinding tools

Compatibility

Designed for use with gang cutters, grinding tools, milling cutters, circular saws, and slitting blades mounted on arbors with a 5/8-inch bore and 3/16-inch keyway.

Installation Notes

Arbor spacer installation is performed by machinists and toolroom technicians. Power down and lock out the machine spindle before assembling or disassembling any arbor stack. Slide spacers onto the arbor in the desired order, aligning each keyway slot with the arbor key before seating the retaining nut. Inspect spacer faces for burrs or contamination before assembly, as surface irregularities affect cutter positioning accuracy.