United Abrasives Tapered Cartridge Roll | 38327 | 1/2" Diameter | 80 Grit | Sold by Box of 100

For smoothing tool marks along elongated angled recesses, refining internal fillets, and blending machined metal contours, the United Abrasives 38327 Tapered Cartridge Roll provides intermediate sanding action in an extended, pointed configuration. Featuring a 1/2" base diameter, 2" length, and 80-grit premium aluminum oxide abrasive, this roll is suited to removing light burrs, reducing surface irregularities, and refining metal surfaces after initial coarse sanding. Its full-taper profile narrows toward the tip, making it useful for reaching angled channels, internal corners, and recessed contours where a straight cylindrical cartridge roll may not provide suitable contact.

The United Abrasives 38327 uses a multi-layer, self-dressing construction, meaning fresh, sharp abrasive grain is exposed as successive layers wear away to help maintain cutting effectiveness. Its 1/8" arbor opening corresponds to the manufacturer-listed 95103 cartridge roll mandrel for appropriately matched mounting. The 26,000 RPM maximum operating speed establishes the abrasive's upper speed limit and must be considered when selecting a rotary tool and mandrel. Compared with the shorter 38320 model, the extended 2" length provides additional abrasive contact along elongated contours where sufficient clearance is available. Suitable workpiece materials include ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel. The 38327 is supplied in a box of 100 for recurring machining, fabrication, and finishing operations.

Type: Tapered Cartridge Roll | Part Number: 38327 | Abrasive Material: Premium Aluminum Oxide | Base Diameter: 1/2" | Length: 2" | Arbor: 1/8" | Grit: 80 | Max RPM: 26,000 | Recommended Mandrel: 95103 | Quantity: 100 per Box | Material Application: Ferrous Metals, Non-Ferrous Metals, Stainless Steel, High-Tensile Steel

Features:

• Premium aluminum oxide grain supports deburring, sanding, and blending of ferrous and non-ferrous metal components.
• 80-grit abrasive helps remove small burrs and refine machining marks while producing a finer scratch pattern than 60-grit rolls.
• Full-taper profile narrows toward the tip for access to angled recesses, internal corners, and irregular metal contours.
• 1/2" base diameter provides useful abrasive contact near the wider end while allowing more focused sanding toward the tip.
• Extended 2" abrasive length accommodates longer internal fillets and recessed contours where working clearance permits.
• Multi-layer, self-dressing construction exposes new cutting abrasive as successive outer layers wear away.
• 1/8" arbor opening corresponds to the manufacturer-specified 95103 cartridge roll mandrel for matched mounting.
• Quick removal and installation facilitate roll replacement, while the box quantity of 100 supports repeated metal finishing tasks.

Applications:

• Precision machining and CNC finishing – Smoothing cutter marks and minor burrs along elongated angled pockets, internal fillets, and recessed machined features.
• Tool and die manufacturing – Refining tapered cavity walls, recessed tooling contours, and accessible corners requiring a narrowing abrasive profile.
• Metal fabrication – Blending rough edges and localized surface irregularities after initial cutting and deburring operations.
• Stainless steel and alloy steel finishing – Performing intermediate sanding on contoured stainless steel and high-tensile steel components.
• Machinery repair and maintenance – Refining accessible recessed fittings, angled internal features, and contoured repair surfaces.

FAQs:

• Q: How does United Abrasives 38327 differ from 38326? A: Both tapered cartridge rolls have a 1/2" base diameter, 2" length, 1/8" arbor opening, and 26,000 RPM maximum operating speed. The 38327 uses 80-grit abrasive for intermediate sanding and surface refinement, while the 38326 uses coarser 60-grit abrasive for greater material removal.
• Q: What is the difference between the 38327 and the shorter 38320? A: Both models have a 1/2" base diameter, 80-grit aluminum oxide abrasive, and 1/8" arbor opening. The 38327 is 2" long and lists mandrel 95103, while the 38320 is 1-1/2" long and lists mandrel 95104. Choose according to workpiece clearance and the abrasive contact length required.
• Q: Should I choose 80 grit or 120 grit for finishing angled metal surfaces? A: The 80-grit 38327 is useful when minor burrs or machining marks still need removal. The finer 120-grit 38328 is better suited to reducing residual sanding scratches and refining previously prepared surfaces.
• Q: Why use a tapered cartridge roll instead of a straight version? A: The tapered roll narrows toward the tip, helping reach angled corners, internal fillets, and contoured recesses. Straight cartridge rolls maintain a cylindrical working surface and may be more effective along uniform grooves and parallel side walls.
• Q: Can the United Abrasives 38327 be used on stainless steel? A: Yes. United Abrasives identifies stainless steel and high-tensile steel among the suitable workpiece materials. Use abrasives dedicated to stainless steel when preventing cross-contamination from previous carbon steel work is important.
• Q: What mandrel is specified for SKU 38327? A: The United Abrasives 2025–2026 catalog identifies mandrel part number 95103 for this 1/8" arbor, 2" long tapered cartridge roll. Verify correct engagement, secure mounting, tool shank compatibility, and operating speed before use.
• Q: What are the packaging quantity and maximum operating speed? A: The United Abrasives 38327 is sold in a box of 100 tapered cartridge rolls. The maximum operating speed is 26,000 RPM, and both the selected tool and mandrel must meet the applicable mounting and speed requirements.

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