United Abrasives Straight Cartridge Roll | 38083 | 1/2" Diameter | 120 Grit | Sold by Box of 100

For fine sanding along elongated internal grooves and recessed metal surfaces, the United Abrasives 38083 Straight Cartridge Roll combines an extended abrasive working length with a relatively compact diameter. Featuring a 1/2" diameter, 2" length, and 120-grit premium aluminum oxide abrasive, this cylindrical roll is suited to light deburring, scratch refinement, and surface blending after coarser material removal. Its straight shape helps operators sand internal channels, fillets, side walls, recesses, and the bottoms of accessible dead-end holes. The finer 120-grit abrasive produces a less aggressive sanding pattern than the 60- and 80-grit alternatives, making this model useful when improving surface finish is more important than rapid stock removal.

The United Abrasives 38083 uses a multi-layer, self-dressing construction that exposes fresh cutting abrasive as successive layers wear away, helping maintain effective sanding action during use. Its 1/8" arbor opening is designed for mounting with a compatible cartridge roll mandrel, while its 26,000 RPM maximum operating speed establishes the upper limit for rotary tool selection. The 2" abrasive length provides additional contact along extended internal walls compared with shorter 1/2" diameter rolls, provided sufficient clearance is available. Suitable for ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel, the 38083 is supplied in a box of 100 for repeated finishing tasks in machining, fabrication, and maintenance operations.

Type: Straight Cartridge Roll | Part Number: 38083 | Abrasive Material: Premium Aluminum Oxide | Diameter: 1/2" | Length: 2" | Arbor: 1/8" | Grit: 120 | Max RPM: 26,000 | Quantity: 100 per Box | Material Application: Ferrous Metals, Non-Ferrous Metals, Stainless Steel, High-Tensile Steel

Features:

• Premium aluminum oxide grain provides fine abrasive cutting action for sanding and blending metal surfaces.
• 120-grit abrasive helps reduce residual machining marks and scratches left by earlier coarse or intermediate sanding operations.
• 1/2" diameter offers access to relatively narrow openings while providing useful cylindrical contact on recessed surfaces.
• Extended 2" length supports sanding along longer internal channels and side walls where the workpiece permits adequate clearance.
• Straight cylindrical design is useful for smoothing internal fillets, recesses, and the bottoms of accessible dead-end holes.
• Multi-layer, self-dressing construction reveals fresh cutting abrasive as the outer layers wear away.
• Quick removal and installation facilitate cartridge roll changes during multi-stage finishing operations.
• Box quantity of 100 supports planned replenishment for regularly performed metal sanding tasks.

Applications:

• Precision machining and CNC finishing - Refining tool marks and smoothing elongated grooves after initial deburring.
• Tool and die work - Finishing accessible internal fillets, narrow tooling recesses, and extended contoured features.
• Metal fabrication - Blending minor surface imperfections and preparing recessed areas for subsequent finishing steps.
• Stainless steel and alloy steel finishing - Performing localized fine sanding on stainless steel and high-tensile steel components.
• Industrial equipment maintenance - Refining small imperfections on accessible internal metal fittings, machinery parts, and recessed repair surfaces.

FAQs:

• Q: What is the difference between United Abrasives 38083 and 38081? A: Both cartridge rolls have a 1/2" diameter, 2" length, 1/8" arbor opening, and 26,000 RPM maximum operating speed. The 38083 uses finer 120-grit abrasive for surface refinement, while the 38081 uses 80 grit for intermediate sanding and greater material removal.
• Q: Is the 38083 appropriate for heavy burr removal?
  A: This 120-grit roll is better suited to light burr removal, fine sanding, and reducing residual scratches. For pronounced burrs or rough machining marks, a coarser roll such as the 60-grit 38080 may be preferable for the initial sanding stage.
• Q: Why choose the 2" long 38083 instead of the shorter 38076?
  A: Both models have a 1/2" diameter and 120-grit abrasive. The 38083 is 2" long, while the 38076 is 1-1/2" long. The longer roll provides additional abrasive contact along extended internal surfaces, although the shorter version may be easier to position in confined areas.
• Q: Can the United Abrasives 38083 be used on stainless steel?
  A: Yes. United Abrasives lists stainless steel and high-tensile steel among the suitable materials. When avoiding cross-contamination from carbon steel is important, use a cartridge roll dedicated to stainless steel.
• Q: What mandrel is required for SKU 38083?
  A: The roll has a 1/8" arbor opening and requires a compatible cartridge roll mandrel. Verify the manufacturer's recommended mandrel part number, secure mounting engagement, and tool compatibility before use.
• Q: What are the packaging quantity and maximum operating speed?
  A: United Abrasives 38083 is sold in a box of 100 cartridge rolls. Each roll has a maximum operating speed of 26,000 RPM, and the selected tool and mandrel must comply with the manufacturer's speed and mounting requirements.

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For help choosing the correct United Abrasives Straight Cartridge Rolls for your application, please call (800) 608-5210 or email info@intlairtool.com