8" 1A1R Sintered Metal Bond Diamond Cut-Off Wheel .018" x 1.25" Arbor USA Made

New Old Stock (NOS) high-quality American-made 1A1R Sintered Metal Bond Diamond Cut-Off Wheel designed for ultra-precision wet cutting, slicing, slotting, and sectioning applications involving delicate, brittle, and hard materials.

Manufactured using a durable sintered metal bond matrix and premium diamond abrasive for excellent dimensional stability, long wheel life, reduced edge chipping, and highly controlled cutting performance.

This wheel features an ultra-fine 400 grit diamond specification combined with a high diamond concentration matrix engineered for applications requiring:

• exceptionally smooth surface finish
• reduced subsurface damage
• minimal edge chipping
• reduced material loss
• precision thin kerf cutting

The ultra-thin .018" kerf makes this wheel especially suitable for applications where minimizing material waste and maintaining tight tolerances are critical.

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Product Specifications

Wheel Type: 1A1R Straight Diamond Cut-Off Wheel

Bond Type: Sintered Metal Bond

Outside Diameter: 8"

Kerf Thickness: .018"

Arbor Hole Size: 1.25" (1-1/4")

Diamond Depth: 2 mm

Diamond Grit Size: 400 Grit

Diamond Concentration: High Concentration

Recommended Use: Wet Cutting

Country of Manufacture: USA

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Key Features

• Made in the USA
• New Old Stock (NOS)
• Ultra-thin .018" kerf
• Ultra-fine 400 grit specification
• High diamond concentration
• Sintered metal bond construction
• Excellent surface finish quality
• Reduced edge chipping
• Minimal subsurface damage
• Precision cutting performance
• Reduced material loss
• Long service life
• Excellent dimensional stability

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Typical Applications

• Precision slicing
• Thin kerf cut-off operations
• Precision slotting
• Cross-sectioning
• Sample preparation
• Precision laboratory sectioning
• Applications requiring smooth surface finish
• Applications requiring minimal chipping and material deformation

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Recommended Materials

Advanced Ceramics

• Alumina
• Zirconia
• Glass-ceramics
• Technical ceramics

Glass & Optical Materials

• Optical glass
• Quartz
• Fused silica
• Crystals
• Sapphire
• Ruby

Semiconductor & Electronic Materials

• Silicon
• Semiconductor substrates
• Electronic ceramics

Other Precision Materials

• Brittle crystalline materials
• Thin wall ceramic components
• Precision optical materials

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Compatible Equipment

Compatible with many precision wet cutting and laboratory systems including:

• Precision laboratory sectioning saws
• Metallographic wet cut-off saws
• Petrographic wet cutting saws
• Precision slicing and slotting saws
• Surface grinders with wet cutting attachments
• CNC slicing and grinding systems
• Specialized precision cutting equipment using a 1.25" arbor

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Performance Characteristics

The ultra-fine 400 grit specification provides:

• Extremely smooth cutting action
• Improved surface finish
• Reduced micro-chipping
• Reduced subsurface damage
• Better dimensional control
• More controlled material removal

The high concentration matrix helps provide:

• Longer wheel life
• Improved abrasive retention
• Consistent cutting performance
• Improved wheel stability
• Better wear resistance

The ultra-thin .018" kerf design helps reduce:

• Material waste
• Cutting resistance
• Heat generation
• Sample deformation
• Loss of valuable material

Item Condition & Performance Notes

• Status: New Old Stock (NOS) — This wheel is brand new and has never been mounted or used.

• Storage Wear: Due to long-term industrial shelf storage, the wheel exhibits cosmetic surface debris, light oxidation on the metal hub and diamond section, and minor superficial scratches on the metal core (as shown in the high-resolution photos). This will not affect the wheel's performance.

• Rim Characteristics: Please note that the diamond rim of this wheel is a bit uneven with a bumpy profile from manufacturing or storage settling.

• Operational Impact: While the 400 grit will still yield a clean cut, this slight unevenness may cause minor initial vibration or a slightly broader kerf when first breaking in the wheel. Truing or dressing the wheel before its first precision run is highly recommended to smooth out the edge and ensure maximum accuracy.