For fine sanding around angled openings, internal corners, and recessed metal contours, the United Abrasives 38314 Tapered Cartridge Roll delivers controlled abrasive cutting action in a compact, pointed profile. Featuring a 1/2" base diameter, 1" length, and 120-grit premium aluminum oxide abrasive, this cartridge roll is designed for light deburring, scratch refinement, and localized surface finishing. Its full-taper shape narrows toward the tip, helping operators reach internal fillets, tapered cavities, and confined corners where a straight cylindrical abrasive may not provide suitable contact. The fine 120-grit abrasive is particularly useful for reducing machining marks and scratches remaining after coarser sanding operations.
The United Abrasives 38314 incorporates a multi-layer, self-dressing construction that exposes fresh, sharp abrasive grain as successive layers wear away, helping maintain effective sanding action throughout use. Its 1/8" arbor opening corresponds to the manufacturer-listed 95105 cartridge roll mandrel for mounting on compatible rotary tools. The 26,000 RPM maximum operating speed establishes the abrasive's upper speed limit and must be considered when selecting a die grinder and mounting accessory. Its compact dimensions support detailed finishing in accessible recessed features, while the tapered design offers a smaller working contact area near the tip. Suitable materials include ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel. The 38314 is supplied in a box of 100 for recurring metal finishing applications.
Type: Tapered Cartridge Roll | Part Number: 38314 | Abrasive Material: Premium Aluminum Oxide | Base Diameter: 1/2" | Length: 1" | Arbor: 1/8" | Grit: 120 | Max RPM: 26,000 | Recommended Mandrel: 95105 | Quantity: 100 per Box | Material Application: Ferrous Metals, Non-Ferrous Metals, Stainless Steel, High-Tensile Steel
Features:
- Premium aluminum oxide abrasive grain supports fine sanding, light deburring, and surface blending on ferrous and non-ferrous metal components.
- 120-grit abrasive helps smooth minor machining marks and reduce scratches left by earlier coarse or intermediate sanding operations.
- Full-taper construction provides a narrowing abrasive profile for reaching angled recesses, internal corners, and contoured metal features.
- 1/2" base diameter offers useful abrasive coverage near the wider end of the roll while allowing more focused contact toward its tip.
- Compact 1" length is suited to localized sanding in short cavities, internal fillets, and confined workpiece features.
- Multi-layer, self-dressing construction exposes fresh cutting abrasive as successive layers wear away, helping maintain sanding effectiveness.
- 1/8" arbor opening corresponds to the manufacturer-listed 95105 cartridge roll mandrel for appropriately matched mounting.
- Quick removal and installation facilitate abrasive changes, while the box quantity of 100 supports repeated finishing operations.
Applications:
- Precision machining - Refining minor tool marks and smoothing angled openings, internal corners, and recessed machined contours.
- Tool and die manufacturing - Finishing accessible tooling cavities, tapered features, and internal fillets that benefit from a narrowing abrasive shape.
- Metal fabrication - Reducing residual sanding scratches and blending localized surface imperfections after initial deburring.
- Stainless steel and alloy steel finishing - Performing fine abrasive sanding on contoured stainless steel and high-tensile steel components.
- Industrial equipment maintenance - Refining accessible corners, recessed metal fittings, and small contoured repair surfaces.
FAQs:
- Q: How does United Abrasives 38314 differ from 38313?
A: Both tapered cartridge rolls have a 1/2" base diameter, 1" length, 1/8" arbor opening, and 26,000 RPM maximum operating speed. The 38314 uses finer 120-grit abrasive for surface refinement, while the 38313 uses 80-grit abrasive for intermediate sanding and greater material removal. - Q: Is the 38314 suitable for aggressive burr removal?
A: Its 120-grit abrasive is better suited to light deburring, reducing fine machining marks, and refining previously sanded surfaces. For prominent burrs or rough surface material, a coarser option such as the 60-grit 38312 may be more effective for the initial sanding stage. - Q: What benefit does the tapered shape provide?
A: The abrasive body narrows toward the tip, making it easier to work on angled corners, internal fillets, and irregular contours. Straight cartridge rolls maintain a cylindrical profile and can be preferable for sanding uniform grooves or parallel side walls. - Q: Can United Abrasives 38314 be used on stainless steel?
A: Yes. United Abrasives identifies stainless steel and high-tensile steel as suitable workpiece materials, along with ferrous and non-ferrous metals. Use abrasives dedicated to stainless steel when preventing cross-contamination from prior carbon steel work is important. - Q: Which mandrel is recommended for United Abrasives part number 38314?
A: The United Abrasives 20252026 catalog identifies mandrel part number 95105 for this 1/8" arbor cartridge roll. Verify secure mounting engagement, shank compatibility, and the applicable operating speed before use. - Q: How many cartridge rolls are supplied, and what is their maximum operating speed?
A: United Abrasives 38314 is sold in a box of 100 tapered cartridge rolls. Each roll has a maximum operating speed of 26,000 RPM. The selected rotary tool and mandrel must meet the manufacturer's mounting and speed requirements.
Available Variations and Specifications
| SKU (Qty 100) |
Base Dia | Length | Arbor | Grit | Max RPM | Mandrel Part # |
|---|---|---|---|---|---|---|
| 38300 | 3/8" | 1" | 1/8" | 60 | 26,000 | 95105 |
| 38301 | 3/8" | 1" | 1/8" | 80 | 26,000 | 95105 |
| 38302 | 3/8" | 1" | 1/8" | 120 | 26,000 | 95105 |
| 38306 | 3/8" | 1-1/2" | 1/8" | 60 | 26,000 | 95104 |
| 38307 | 3/8" | 1-1/2" | 1/8" | 80 | 26,000 | 95104 |
| 38308 | 3/8" | 1-1/2" | 1/8" | 120 | 26,000 | 95104 |
| 38312 | 1/2" | 1" | 1/8" | 60 | 26,000 | 95105 |
| 38313 | 1/2" | 1" | 1/8" | 80 | 26,000 | 95105 |
| 38314 | 1/2" | 1" | 1/8" | 120 | 26,000 | 95105 |
| 38318 | 1/2" | 1-1/2" | 1/8" | 50 | 26,000 | 95104 |
| 38319 | 1/2" | 1-1/2" | 1/8" | 60 | 26,000 | 95104 |
| 38320 | 1/2" | 1-1/2" | 1/8" | 80 | 26,000 | 95104 |
| 38322 | 1/2" | 1-1/2" | 1/8" | 120 | 26,000 | 95104 |
| 38326 | 1/2" | 2" | 1/8" | 60 | 26,000 | 95103 |
| 38327 | 1/2" | 2" | 1/8" | 80 | 26,000 | 95103 |
| 38328 | 1/2" | 2" | 1/8" | 120 | 26,000 | 95103 |
| 38332 | 5/8" | 2" | 1/8" | 60 | 18,000 | 95103 |
| 38333 | 5/8" | 2" | 1/8" | 80 | 18,000 | 95103 |
| 38338 | 3/4" | 1-1/2" | 1/8" | 60 | 18,000 | 95104 |
| 38339 | 3/4" | 1-1/2" | 1/8" | 80 | 18,000 | 95104 |
| 38340 | 3/4" | 1-1/2" | 1/8" | 120 | 18,000 | 95104 |
| 38344 | 3/4" | 2" | 3/16" | 60 | 18,000 | 95106 |
| 38345 | 3/4" | 2" | 3/16" | 80 | 18,000 | 95106 |
| 38346 | 3/4" | 2" | 3/16" | 120 | 18,000 | 95106 |
Looking for more information about United Abrasives Tapered Cartridge Roll? For help choosing the correct United Abrasives Tapered Cartridge Rolls for your application, please call (800) 608-5210 or email info@intlairtool.com
- Type
- Tapered Cartridge Roll
- Diameter (in.)
- 1/2
- Length (in.)
- 1
- Arbor Hole (in.)
- 1/8
- Grit
- 120
- RPM
- 26000
- Mandrel Part
- 95105
- Box of
- 100
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