For removing machining burrs, smoothing rough edges, and blending recessed metal surfaces, the United Abrasives 38073 Straight Cartridge Roll provides effective abrasive cutting action with an extended cylindrical working surface. Featuring a 1/2" diameter, 1-1/2" length, and 60-grit premium aluminum oxide abrasive, this cartridge roll supports coarse-to-intermediate sanding, localized flash removal, and surface preparation before finer finishing operations. Its straight profile allows operators to work along channels, fillets, recesses, side walls, and the bottoms of dead-end holes where larger abrasive wheels may not provide adequate access. The 60-grit abrasive offers a less aggressive cutting action than 40- or 50-grit alternatives while retaining useful material removal capability. Suitable workpiece materials include ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel.
The United Abrasives 38073 features a multi-layer, self-dressing construction, meaning fresh cutting abrasive is exposed as successive layers wear away, helping maintain sanding effectiveness during use. Its 1/8" arbor opening corresponds to the manufacturer-specified 95104 cartridge roll mandrel, which has a 1/4" shank for installation in an appropriately sized rotary tool collet. With a maximum operating speed of 26,000 RPM, the abrasive must be paired with equipment that does not exceed its rated operating speed. Compared with the shorter United Abrasives 38063, the 38073 provides an additional 1/2" of abrasive length for sanding elongated grooves and accessible internal surfaces. Supplied in a box of 100, this configuration supports recurring metal preparation requirements in machine shops, fabrication facilities, and industrial maintenance departments.
Type: Straight Cartridge Roll | Part Number: 38073 | Abrasive Material: Premium Aluminum Oxide | Diameter: 1/2" | Length: 1-1/2" | Arbor: 1/8" | Grit: 60 | 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 abrasive grain provides cutting action for deburring, sanding, and surface blending on ferrous and non-ferrous metals.
- 60-grit abrasive removes minor machining burrs, flash, and rough surface marks while producing a finer sanding pattern than coarser 40- or 50-grit rolls.
- 1/2" diameter offers useful abrasive coverage for accessible channels, recessed areas, and internal metal surfaces.
- 1-1/2" straight cylindrical construction provides extended abrasive contact along grooves, fillets, side walls, and the bottoms of dead-end holes.
- Multi-layer, self-dressing construction exposes sharp, fresh cutting abrasive as successive layers wear away, helping sustain effective sanding action.
- Suitable for high-speed deburring and flash removal when operated within the manufacturer's maximum rated speed.
- Quick removal and installation simplify abrasive changes during repetitive metalworking operations.
- Supplied in boxes of 100 for convenient stocking and replenishment in machining, fabrication, and maintenance environments.
Applications:
- Machining and CNC workshops - Removing residual machining burrs, smoothing tool marks, and cleaning elongated internal grooves on finished or partially machined components.
- Metal fabrication and welding - Blending rough edges, removing localized flash, and preparing recessed metal surfaces for subsequent abrasive finishing.
- Tool and die maintenance - Sanding internal fillets, extended tooling recesses, and accessible cavities where the longer abrasive profile provides useful surface contact.
- Stainless steel and alloy steel processing - Performing localized deburring and coarse-to-intermediate surface preparation on stainless steel and high-tensile steel workpieces.
- Industrial maintenance and equipment repair - Refining rough metal features and preparing accessible internal surfaces on machinery components, fittings, and repair parts.
FAQs:
- Q: What is the difference between United Abrasives 38073 and 38072 Straight Cartridge Rolls?
A: Both models have a 1/2" diameter, 1-1/2" length, 1/8" arbor opening, and 26,000 RPM maximum operating speed. The 38073 uses 60-grit abrasive for coarse-to-intermediate sanding, while the 38072 features coarser 50-grit abrasive for more aggressive initial material removal. - Q: How does the United Abrasives 38073 compare with the shorter 38063?
A: Both cartridge rolls have a 1/2" diameter and 60-grit aluminum oxide abrasive. The 38073 measures 1-1/2" long, while the 38063 measures 1" long. The additional abrasive length provides more working surface for elongated recesses and internal side walls where adequate clearance is available. - Q: Can this cartridge roll be used on stainless steel?
A: Yes. United Abrasives lists stainless steel and high-tensile steel among the suitable workpiece materials. Use abrasives dedicated to stainless steel when preventing cross-contamination from carbon steel is important. Finer grits may be required if a smoother final finish is desired. - Q: Which mandrel is recommended for United Abrasives part number 38073?
A: The United Abrasives 2025-2026 catalog identifies mandrel part number 95104 for this cartridge roll. The mandrel has a 1/8" mounting diameter and a 1/4" shank. Confirm correct mounting engagement, secure installation, and suitable tool speed before operation. - Q: How many cartridge rolls are supplied, and what is their maximum operating speed?
A: United Abrasives part number 38073 is sold 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 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
- 60
- RPM
- 26000
- Mandrel Part
- 95104
- Box of
- 100
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