For refining machining marks, smoothing small burrs, and blending metal surfaces around angled openings, the United Abrasives 38313 Tapered Cartridge Roll provides intermediate abrasive cutting action in a compact, pointed shape. With a 1/2" base diameter, 1" length, and 80-grit premium aluminum oxide abrasive, this roll is suitable for sanding recessed corners, internal fillets, contoured edges, and other areas where a straight cylindrical abrasive may not make effective contact. Its full-taper profile narrows toward the tip, helping operators approach confined features while retaining a wider abrasive surface near the base. The 80-grit construction offers a finer sanding pattern than the 60-grit alternative, making it useful for blending surfaces after initial deburring.
The United Abrasives 38313 uses a multi-layer, self-dressing construction, meaning fresh cutting grain becomes exposed as successive abrasive layers wear away. This helps sustain sanding effectiveness during repeated use. Its 1/8" arbor opening corresponds to the 95105 cartridge roll mandrel identified in the manufacturer's catalog, while the 26,000 RPM maximum operating speed determines the abrasive's upper speed limit. Suitable workpiece materials include ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel. Supplied in a box of 100, the 38313 supports recurring finishing and light deburring work in machining, tool and die, fabrication, and industrial repair environments.
Type: Tapered Cartridge Roll | Part Number: 38313 | Abrasive Material: Premium Aluminum Oxide | Base Diameter: 1/2" | Length: 1" | Arbor: 1/8" | Grit: 80 | 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 grain supports deburring, sanding, and blending on ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel.
- 80-grit abrasive helps smooth residual burrs and surface marks while leaving a finer scratch pattern than coarser abrasive grades.
- Full-taper shape provides a narrowing working profile for internal corners, angled recesses, and irregular metal contours.
- 1/2" base diameter offers abrasive contact on accessible recessed surfaces while the tapered tip reaches narrower features.
- Compact 1" length helps with positioning in short cavities and localized finishing areas.
- Multi-layer, self-dressing construction reveals fresh abrasive grain as successive layers wear away.
- 1/8" arbor opening matches the manufacturer-referenced 95105 cartridge roll mandrel for suitable mounting.
- Quick removal and installation facilitate roll replacement during recurring sanding work; supplied in boxes of 100 for inventory replenishment.
Applications:
- Machined components - Blending small burrs and cutter marks around angled openings, intersecting surfaces, and recessed contours.
- Tool and die work - Refining accessible cavity corners, tooling fillets, and tapered features where a pointed abrasive shape improves access.
- Metal fabrication - Smoothing localized edge irregularities after cutting, fitting, or initial coarse deburring.
- Stainless steel finishing - Performing intermediate abrasive blending on recessed stainless steel and high-tensile steel parts.
- Equipment repair - Refining contoured surfaces inside accessible metal fittings and machinery recesses.
FAQs:
- Q: What is the difference between United Abrasives 38313 and 38312?
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 38313 features 80-grit abrasive for intermediate sanding and surface blending, while the 38312 uses coarser 60-grit abrasive for greater material removal. - Q: Should I choose the 38313 or the finer 38314?
A: The 80-grit 38313 is suitable when small burrs and visible machining marks still require cutting action. The 120-grit 38314 is better suited to refining scratches and improving surface finish after initial blending. - Q: What does a tapered cartridge roll do differently from a straight roll?
A: Its abrasive body narrows toward the tip, providing access to angled corners and contoured recesses. Straight rolls maintain a cylindrical working surface and may be preferable for sanding along parallel side walls or uniform grooves. - Q: Is United Abrasives 38313 appropriate for heavy stock removal?
A: This 80-grit version is better suited to light deburring and intermediate blending. Coarser abrasives are generally more appropriate for heavy burrs or substantial stock removal. - Q: Which mandrel is specified for SKU 38313?
A: The United Abrasives catalog lists mandrel part number 95105 for this 1/8" arbor, 1" long tapered cartridge roll. Verify secure engagement, shank fit, and tool compatibility before installation. - Q: How many rolls are supplied and what is the maximum speed?
A: Part number 38313 is sold in a box of 100 tapered cartridge rolls. Its maximum operating speed is 26,000 RPM. The tool and mandrel must meet the applicable 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
- 80
- RPM
- 26000
- Mandrel Part
- 95105
- Box of
- 100
This product hasn't received any reviews yet. Be the first to review this product!