When sanding elongated grooves or refining metal surfaces inside narrow recesses, the United Abrasives 38015 Straight Cartridge Roll provides a longer abrasive working surface without increasing the roll diameter. Featuring a 1/4" diameter, 1-1/2" length, and 80-grit premium aluminum oxide grain, this cartridge roll supports deburring, intermediate sanding, and surface blending on machined and fabricated metal components. Its straight cylindrical design reaches channels, fillets, recesses, side walls, and the bottoms of dead-end holes where larger abrasive accessories cannot make effective contact. The 80-grit abrasive offers a balance of material removal and surface refinement, making it useful for smoothing machining marks and reducing the rougher sanding pattern left by coarser grits.
The United Abrasives 38015 features a multi-layer, self-dressing construction, which exposes fresh cutting abrasive as successive layers wear away to help maintain effective sanding action. Its 1/8" arbor opening corresponds to the manufacturer-listed 95104 cartridge roll mandrel for mounting on a compatible die grinder or rotary tool. The 26,000 maximum RPM rating establishes the roll's upper operating speed limit for safe tool selection. Compared with the shorter United Abrasives 38008, the 38015 provides an additional 1/2" of abrasive length for working along extended internal surfaces. Suitable for ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel, this cartridge roll is supplied in a box of 100 for recurring machining, fabrication, and maintenance requirements.
Type: Straight Cartridge Roll | Part Number: 38015 | Abrasive Material: Premium Aluminum Oxide | Diameter: 1/4" | Length: 1-1/2" | Arbor: 1/8" | Grit: 80 | Max RPM: 26,000 | Mandrel Part Number: 95104 | Quantity: 100 per Box | Material Application: Ferrous Metals, Non-Ferrous Metals, Stainless Steel, High-Tensile Steel
Features:
- Premium aluminum oxide grain provides effective abrasive action for blending, deburring, and finishing ferrous and non-ferrous metal surfaces.
- 80-grit abrasive supports intermediate sanding and removal of minor burrs, machining marks, and localized surface irregularities.
- 1/4" diameter permits access to narrow channels and recessed openings where a larger cartridge roll would not fit.
- 1-1/2" straight cylindrical profile offers extended abrasive contact along internal side walls, fillets, grooves, and recesses.
- Multi-layer, self-dressing construction reveals sharp, new abrasive grain as each layer wears away, helping sustain cutting effectiveness.
- Suitable for high-speed deburring and flash removal when operated within the manufacturer's specified maximum speed.
- Quick removal and installation help reduce time spent replacing abrasive rolls during multi-stage finishing operations.
- Supplied in boxes of 100 to support repeat-use abrasive requirements and inventory replenishment in metalworking facilities.
Applications:
- Precision machining and CNC operations - Blending machining marks, removing minor burrs, and sanding elongated grooves inside machined components.
- Tool and die maintenance - Refining recessed contours, internal fillets, and narrow tooling features where additional abrasive length is useful.
- Metal fabrication and finishing - Smoothing localized imperfections and preparing confined metal surfaces for subsequent finishing operations.
- Stainless steel and alloy steel processing - Performing intermediate sanding and surface blending on stainless steel and high-tensile steel workpieces.
- Industrial equipment repair - Cleaning and refining extended recessed surfaces on metal fittings, machinery components, and repair parts.
FAQs:
- Q: How does the United Abrasives 38015 differ from the 38008 Straight Cartridge Roll?
A: Both models have a 1/4" diameter, 80-grit aluminum oxide abrasive, and 26,000 RPM maximum operating speed. The 38015 measures 1-1/2" long, while the 38008 measures 1" long. The additional length provides more abrasive contact area for sanding extended grooves and internal side walls. - Q: Should I choose the 38015 or the 38014 for metal deburring?
A: Both are 1/4" diameter, 1-1/2" long cartridge rolls. The 38014 uses coarser 60-grit abrasive for more aggressive material removal, while the 38015 uses 80-grit abrasive for intermediate deburring and a finer sanding pattern. - Q: Can the United Abrasives 38015 be used on stainless steel?
A: Yes. United Abrasives identifies stainless steel and high-tensile steel as suitable materials, along with ferrous and non-ferrous metals. When preventing cross-contamination is important, reserve separate abrasives for stainless steel rather than using rolls previously applied to carbon steel. - Q: What mandrel is recommended for the United Abrasives 38015?
A: The United Abrasives 2025-2026 catalog identifies mandrel part number 95104 for this cartridge roll. Verify the mandrel's shank fit, mounting engagement, and speed rating against the selected rotary tool before operation. - Q: How many cartridge rolls come in a box, and what is their maximum operating speed?
A: United Abrasives part number 38015 is supplied in a box of 100 cartridge rolls, each rated for a maximum operating speed of 26,000 RPM. The power tool must not exceed the abrasive's rated speed, and the mandrel must also be appropriate for the operating conditions.
| SKU (Qty 100) |
Base Dia | Length | Arbor | Grit | Max RPM | Mandrel Part # |
|---|---|---|---|---|---|---|
| 38001 | 3/16" | 1" | 3/32" | 80 | 26,000 | 95108 |
| 38003 | 3/16" | 1" | 3/32" | 120 | 26,000 | 95108 |
| 38007 | 1/4" | 1" | 1/8" | 60 | 26,000 | 95105 |
| 38008 | 1/4" | 1" | 1/8" | 80 | 26,000 | 95105 |
| 38010 | 1/4" | 1" | 1/8" | 120 | 26,000 | 95105 |
| 38013 | 1/4" | 1" | 1/8" | 320 | 26,000 | 95105 |
| 38014 | 1/4" | 1-1/2" | 1/8" | 60 | 26,000 | 95104 |
| 38015 | 1/4" | 1-1/2" | 1/8" | 80 | 26,000 | 95104 |
| 38017 | 1/4" | 1-1/2" | 1/8" | 120 | 26,000 | 95104 |
| 38019 | 1/4" | 1-1/2" | 1/8" | 240 | 26,000 | 95104 |
| 38040 | 3/8" | 1" | 1/8" | 60 | 26,000 | 95105 |
| 38041 | 3/8" | 1" | 1/8" | 80 | 26,000 | 95105 |
| 38043 | 3/8" | 1" | 1/8" | 120 | 26,000 | 95105 |
| 38047 | 3/8" | 1-1/2" | 1/8" | 50 | 26,000 | 95104 |
| 38048 | 3/8" | 1-1/2" | 1/8" | 60 | 26,000 | 95104 |
| 38049 | 3/8" | 1-1/2" | 1/8" | 80 | 26,000 | 95104 |
| 38051 | 3/8" | 1-1/2" | 1/8" | 120 | 26,000 | 95104 |
| 38055 | 3/8" | 2" | 1/8" | 60 | 26,000 | 95103 |
| 38056 | 3/8" | 2" | 1/8" | 80 | 26,000 | 95103 |
| 38062 | 1/2" | 1" | 1/8" | 50 | 26,000 | 95105 |
| 38063 | 1/2" | 1" | 1/8" | 60 | 26,000 | 95105 |
| 38064 | 1/2" | 1" | 1/8" | 80 | 26,000 | 95105 |
| 38066 | 1/2" | 1" | 1/8" | 120 | 26,000 | 95105 |
Looking for more information about United Abrasives Straight Cartridge Roll? For help choosing the correct United Abrasives Straight Cartridge Rolls for your application, please call (800) 608-5210 or email info@intlairtool.com
- Type
- Straight Cartridge Roll
- Diameter (in.)
- 1/4
- Length (in.)
- 1-1/2
- Arbor Hole (in.)
- 1/8
- Grit
- 80
- RPM
- 26000
- Mandrel Part
- 95104
- Box of
- 100
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