For aggressive deburring and surface cleanup in recessed metal features, the United Abrasives 38071 Straight Cartridge Roll provides coarse abrasive cutting action with an extended cylindrical working surface. Featuring a 1/2" diameter, 1-1/2" length, and 40-grit premium aluminum oxide abrasive, this cartridge roll is suited to removing pronounced machining marks, flash, rough edges, and localized surface irregularities before finer finishing operations. Its straight cylindrical profile helps reach channels, fillets, recesses, side walls, and the bottoms of dead-end holes where conventional grinding wheels and abrasive discs may be difficult to position. The coarse 40-grit grain makes this configuration a useful choice for initial material removal on ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel.
The United Abrasives 38071 uses a multi-layer, self-dressing construction, which exposes fresh cutting abrasive as successive layers wear away, helping maintain effective sanding action during use. Its 1/8" arbor opening corresponds to the manufacturer-listed 95104 cartridge roll mandrel for mounting on compatible rotary tools. With a maximum operating speed of 26,000 RPM, the abrasive can be used for high-speed deburring and flash removal when the tool and mandrel meet the applicable speed requirements. The 1-1/2" abrasive length provides useful contact along extended internal surfaces, while the 1/2" diameter covers a wider area than smaller cartridge rolls where adequate clearance is available. Supplied in a box of 100, the 38071 supports recurring abrasive requirements in machining, metal fabrication, toolroom, and industrial maintenance operations.
Type: Straight Cartridge Roll | Part Number: 38071 | Abrasive Material: Premium Aluminum Oxide | Diameter: 1/2" | Length: 1-1/2" | Arbor: 1/8" | Grit: 40 | 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 coarse cutting action for removing burrs, flash, and unwanted surface material from metal components.
- 40-grit abrasive supports initial surface preparation and aggressive sanding before progressing to finer abrasive grades.
- 1/2" diameter provides a useful abrasive contact area for accessible channels, cavities, and recessed metal surfaces.
- 1-1/2" straight cylindrical profile extends the working surface along internal side walls, grooves, fillets, and elongated recesses.
- Multi-layer, self-dressing construction exposes sharp, new cutting abrasive 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 operating speed.
- Quick removal and installation help minimize interruptions during cartridge roll replacement.
- Supplied in boxes of 100 for organized abrasive stocking and repeated material removal operations.
Applications:
- Machine shops and CNC manufacturing - Removing pronounced burrs and machining marks from accessible grooves, cavities, and internal metal surfaces after machining.
- Metal fabrication and welding - Cleaning up flash, blending rough edges, and preparing recessed areas of fabricated parts for further finishing.
- Tool and die maintenance - Performing coarse sanding along internal contours, fillets, and tooling recesses requiring localized abrasive contact.
- Stainless steel and alloy steel fabrication - Initial surface preparation and deburring of stainless steel and high-tensile steel components before finer sanding stages.
- Industrial maintenance and repair - Removing localized roughness and preparing metal fittings, machinery components, and recessed repair surfaces for subsequent work.
FAQs:
- Q: When should I choose a 40-grit straight cartridge roll? A: A 40-grit cartridge roll is suitable for coarse sanding, noticeable burr removal, and initial material removal. It produces a rougher surface texture than finer 60-, 80-, or 120-grit rolls, so additional sanding may be needed when a smoother final finish is required.
- Q: What is the difference between United Abrasives 38071 and 38070? A: Both cartridge rolls have a 1/2" diameter, 1-1/2" length, and 26,000 RPM maximum operating speed. The 38071 uses 40-grit abrasive with a 1/8" arbor and mandrel 95104, while the 38070 uses coarser 36-grit abrasive with a 3/16" arbor and mandrel 95107. The arbor difference is important when selecting a compatible mounting accessory.
- Q: Can this cartridge roll 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. For work requiring contamination control, reserve separate abrasives for stainless steel rather than using rolls previously applied to carbon steel.
- Q: Which mandrel is recommended for United Abrasives part number 38071? A: The manufacturer's 20252026 catalog lists mandrel part number 95104 for this cartridge roll. The 38071 has a 1/8" arbor opening. Confirm secure mounting, appropriate mandrel engagement, and rotary tool compatibility before operation.
- Q: How many cartridge rolls are supplied, and what is the maximum rated speed? A: United Abrasives part number 38071 is supplied in a box of 100 cartridge rolls, each with a maximum operating speed of 26,000 RPM. The rotary tool must not exceed the abrasive's rated operating speed, and the mandrel must also be suitable for the operating conditions.
Available Variations and Specifications
| SKU (Qty 100) |
Base Dia | Length | Arbor | Grit | Max RPM | Mandrel Part # |
|---|---|---|---|---|---|---|
| 38070 | 1/2" | 1-1/2" | 3/16" | 36 | 26,000 | 95107 |
| 38071 | 1/2" | 1-1/2" | 1/8" | 40 | 26,000 | 95104 |
| 38072 | 1/2" | 1-1/2" | 1/8" | 50 | 26,000 | 95104 |
| 38073 | 1/2" | 1-1/2" | 1/8" | 60 | 26,000 | 95104 |
| 38074 | 1/2" | 1-1/2" | 1/8" | 80 | 26,000 | 95104 |
| 38076 | 1/2" | 1-1/2" | 1/8" | 120 | 26,000 | 95104 |
| 38080 | 1/2" | 2" | 1/8" | 60 | 26,000 | 95103 |
| 38081 | 1/2" | 2" | 1/8" | 80 | 26,000 | 95103 |
| 38083 | 1/2" | 2" | 1/8" | 120 | 26,000 | 95103 |
| 38087 | 1/2" | 2" | 3/16" | 60 | 26,000 | 95106 |
| 38088 | 1/2" | 2" | 3/16" | 80 | 26,000 | 95106 |
| 38089 | 1/2" | 2" | 3/16" | 120 | 26,000 | 95106 |
| 38093 | 5/8" | 1-1/2" | 1/8" | 60 | 18,000 | 95104 |
| 38094 | 5/8" | 1-1/2" | 1/8" | 80 | 18,000 | 95104 |
| 38095 | 5/8" | 1-1/2" | 1/8" | 120 | 18,000 | 95104 |
| 38112 | 3/4" | 1-1/2" | 3/16" | 40 | 18,000 | 95107 |
| 38113 | 3/4" | 1-1/2" | 3/16" | 60 | 18,000 | 95107 |
| 38114 | 3/4" | 1-1/2" | 3/16" | 80 | 18,000 | 95107 |
| 38119 | 3/4" | 2" | 3/16" | 40 | 18,000 | 95106 |
| 38120 | 3/4" | 2" | 3/16" | 60 | 18,000 | 95106 |
| 38121 | 3/4" | 2" | 3/16" | 80 | 18,000 | 95106 |
| 38122 | 3/4" | 2" | 3/16" | 120 | 18,000 | 95106 |
| 38126 | 1" | 1-1/2" | 1/4" | 60 | 18,000 | 95102 |
| 38127 | 1" | 1-1/2" | 1/4" | 80 | 18,000 | 95102 |
| 38128 | 1" | 1-1/2" | 1/4" | 120 | 18,000 | 95102 |
| 38132 | 1" | 2" | 1/4" | 60 | 18,000 | 95101 |
| 38133 | 1" | 2" | 1/4" | 80 | 18,000 | 95101 |
| 38134 | 1" | 2" | 1/4" | 120 | 18,000 | 95101 |
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.)
- 1/2
- Length (in.)
- 1-1/2
- Arbor Hole (in.)
- 1/8
- Grit
- 40
- RPM
- 26000
- Mandrel Part
- 95104
- Box of
- 100
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