United Abrasives Straight Cartridge Roll | 38064 | 1/2" Diameter | 80 Grit | Sold by Box of 100

When a metal surface needs more refinement than coarse sanding can provide, the United Abrasives 38064 Straight Cartridge Roll offers controlled abrasive action for deburring, blending, and finishing recessed workpiece features. Featuring a 1/2" diameter, 1" length, and 80-grit premium aluminum oxide grain, this cartridge roll helps smooth machining marks, remove minor burrs, and prepare metal surfaces for subsequent finishing. Its straight cylindrical shape reaches channels, fillets, recesses, side walls, and the bottoms of dead-end holes where conventional abrasive discs may be difficult to position. The medium 80-grit abrasive provides a finer sanding pattern than coarser 50- or 60-grit rolls while retaining useful cutting action for general metalworking. Suitable materials include ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel.

The United Abrasives 38064 incorporates a multi-layer, self-dressing construction that exposes fresh cutting abrasive as each outer layer wears away, helping maintain effective sanding action throughout use. Its 1/8" arbor opening corresponds to the manufacturer-listed 95105 cartridge roll mandrel for installation on compatible rotary tools. A maximum operating speed of 26,000 RPM establishes the abrasive's speed limit and helps operators select appropriately rated equipment. The 1/2" diameter provides a wider working surface than smaller cartridge rolls when the workpiece offers sufficient clearance. Supplied in a box of 100, the 38064 supports ongoing deburring and surface blending requirements in machine shops, fabrication departments, toolrooms, and maintenance facilities.

Type: Straight Cartridge Roll | Part Number: 38064 | Abrasive Material: Premium Aluminum Oxide | Diameter: 1/2" | Length: 1" | Arbor: 1/8" | Grit: 80 | Max RPM: 26,000 | Mandrel Part Number: 95105 | Quantity: 100 per Box | Material Application: Ferrous Metals, Non-Ferrous Metals, Stainless Steel, High-Tensile Steel

Features:

• Premium aluminum oxide abrasive grain supports sanding, deburring, blending, and finishing on ferrous and non-ferrous metals.
• 80-grit abrasive provides intermediate cutting action for smoothing machining marks and refining surfaces after coarse abrasive work.
• 1/2" diameter offers a relatively broad abrasive contact area for accessible internal features and recessed metal surfaces.
• 1" straight cylindrical construction allows abrasive contact along channels, fillets, side walls, and the bottoms of dead-end holes.
• Multi-layer, self-dressing construction exposes sharp, new cutting abrasive as successive layers wear away, helping sustain abrasive effectiveness.
• Suitable for high-speed deburring and flash removal when operated within the manufacturer's specified maximum speed rating.
• Quick removal and installation help reduce interruptions when changing worn cartridge rolls during finishing operations.
• Box quantity of 100 supports routine abrasive replenishment and organized inventory management in metalworking environments.

Applications:

• Precision machining and CNC workshops - Smoothing minor tool marks, removing residual burrs, and blending accessible recessed surfaces on machined metal components.
• Metal fabrication and finishing - Refining edges, blending localized sanding marks, and preparing grooves or cavities for additional finishing operations.
• Tool and die maintenance - Sanding internal fillets, recessed contours, and tooling surfaces where a straight rotary abrasive provides controlled contact.
• Stainless steel and alloy steel processing - Performing intermediate sanding and surface preparation on stainless steel and high-tensile steel workpieces.
• Industrial maintenance and repair - Cleaning small recesses, smoothing repaired metal surfaces, and removing minor imperfections from machinery components.

FAQs:

• Q: What is the difference between United Abrasives 38064 and 38063 Straight Cartridge Rolls?
  A: Both models feature a 1/2" diameter, 1" length, 1/8" arbor opening, and 26,000 RPM maximum operating speed. The 38064 uses finer 80-grit abrasive for intermediate sanding and surface blending, while the 38063 uses coarser 60-grit abrasive for more aggressive deburring and material removal.
• Q: Can the United Abrasives 38064 remove heavy burrs?
  A: The 80-grit abrasive works well for smaller burrs, machining marks, and moderate surface cleanup. For heavier burrs or substantial stock removal, a coarser 50- or 60-grit cartridge roll may be more effective before progressing to the 38064 for refinement.
• Q: Is the United Abrasives 38064 suitable for stainless steel?
  A: Yes. United Abrasives identifies stainless steel and high-tensile steel among the suitable workpiece materials, along with ferrous and non-ferrous metals. For applications requiring contamination control, use cartridge rolls dedicated to stainless steel rather than abrasives previously used on carbon steel.
• Q: Which mandrel is specified for United Abrasives part number 38064?
  A: The United Abrasives catalog identifies mandrel part number 95105 for this cartridge roll. Its arbor opening measures 1/8". Verify secure mounting, rotary tool fit, and applicable speed ratings before use.
• Q: How many cartridge rolls are supplied, and what is their maximum operating speed?
  A: United Abrasives part number 38064 is supplied in a box of 100 cartridge rolls. The maximum rated operating speed is 26,000 RPM. Always ensure the power tool does not exceed the abrasive's speed rating and that the selected mandrel is suitable for the application.

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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