United Abrasives 38040 Straight Cartridge Roll offers a compact abrasive solution for localized sanding and surface preparation. Featuring a 3/8" diameter, 1" length, and 60-grit premium aluminum oxide abrasive, this cartridge roll provides coarse cutting action for deburring, blending machining marks, and removing flash from metal components. Its straight cylindrical shape allows operators to work along channels, fillets, recesses, side walls, and the bottoms of dead-end holes where larger abrasive accessories may restrict access. Suitable for ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel, the 38040 is particularly useful when initial material removal takes priority over producing a fine surface finish.
The United Abrasives 38040 features a multi-layer, self-dressing construction that exposes fresh cutting abrasive as successive layers wear away, helping maintain effective sanding action throughout use. Its 1/8" arbor opening corresponds to the manufacturer-specified 95105 cartridge roll mandrel for mounting on compatible rotary tools. The 26,000 maximum RPM rating establishes the abrasive's operating speed limit, allowing buyers to select appropriately rated equipment. Compared with smaller 1/4" cartridge rolls, the 3/8" diameter provides a broader abrasive contact area where the workpiece offers sufficient clearance. Supplied in a box of 100, this configuration supports recurring deburring and surface preparation operations in metal fabrication shops, machining facilities, toolrooms, and industrial maintenance departments.
Type: Straight Cartridge Roll | Part Number: 38040 | Abrasive Material: Premium Aluminum Oxide | Diameter: 3/8" | Length: 1" | Arbor: 1/8" | Grit: 60 | Max RPM: 26,000 | Mandrel Part Number: 95105 | Quantity: 100 per Box | Material Application: Ferrous Metals, Non-Ferrous Metals, Stainless Steel, High-Tensile Steel
Features:
- Premium aluminum oxide grain provides effective abrasive cutting action for sanding, deburring, and blending metal surfaces.
- Coarse 60-grit abrasive supports initial surface preparation and removal of burrs, flash, and machining marks.
- 3/8" diameter offers a wider abrasive contact area than smaller cartridge rolls while maintaining access to recessed metal features.
- 1" straight cylindrical configuration facilitates sanding along channels, fillets, side walls, and the bottoms of dead-end holes.
- Multi-layer, self-dressing construction exposes sharp, new cutting abrasive as each layer wears away, helping sustain material removal performance.
- Suitable for high-speed deburring and flash removal when operated within the manufacturer's specified speed limits.
- Quick removal and installation help minimize interruptions during abrasive replacement.
- Available in boxes of 100 for convenient abrasive inventory management and repeated metalworking operations.
Applications:
- Metal fabrication and welding - Removing localized burrs, blending rough metal surfaces, and cleaning up flash in recessed areas of fabricated components.
- Machining and CNC operations - Smoothing machining marks and preparing internal channels, grooves, and accessible cavities for subsequent finishing.
- Tool and die manufacturing - Sanding recessed contours, internal fillets, and small metal features requiring concentrated abrasive contact.
- Stainless steel and alloy steel fabrication - Performing initial surface preparation and deburring on stainless steel and high-tensile steel workpieces.
- Industrial maintenance and repair - Cleaning up damaged edges, rough surfaces, and localized imperfections during metal component refurbishment.
FAQs:
- Q: What types of sanding work are best suited to the United Abrasives 38040?
A: The 38040 is suited to coarse sanding, deburring, flash removal, and initial surface blending in confined metalworking areas. Its 60-grit abrasive removes material more aggressively than finer cartridge roll grits, making it useful before intermediate or final finishing. - Q: How does the 38040 compare with the United Abrasives 38007?
A: Both models feature 60-grit aluminum oxide abrasive, a 1" length, and a 26,000 RPM maximum operating speed. The 38040 has a 3/8" diameter, providing a broader abrasive contact area, while the 38007 has a smaller 1/4" diameter for tighter openings. - Q: Can the United Abrasives 38040 be used on stainless steel?
A: Yes. The manufacturer lists stainless steel and high-tensile steel among its suitable materials, along with ferrous and non-ferrous metals. When surface contamination must be controlled, use abrasives dedicated to stainless steel rather than rolls previously used on carbon steel. - Q: Which mandrel is specified for the United Abrasives 38040?
A: United Abrasives identifies mandrel part number 95105 for this cartridge roll. Its arbor opening measures 1/8". Verify mandrel compatibility with the selected rotary tool and its operating speed before use. - Q: What is the maximum operating speed, and how many cartridge rolls are supplied?
A: The 38040 has a maximum operating speed of 26,000 RPM and is sold in a box quantity of 100. The power tool must not exceed the abrasive's rated speed, and the mandrel must also be suitable 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.)
- 3/8
- Length (in.)
- 1
- Arbor Hole (in.)
- 1/8
- Grit
- 60
- RPM
- 26000
- Mandrel Part
- 95105
- Box of
- 100
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