For refining machined surfaces, smoothing minor burrs, and improving surface texture inside recessed metal features, the United Abrasives 38066 Straight Cartridge Roll provides controlled sanding action in a compact cylindrical abrasive format. Featuring a 1/2" diameter, 1" length, and 120-grit premium aluminum oxide abrasive, this cartridge roll is suited to fine deburring, surface blending, and finishing operations where aggressive stock removal is unnecessary. Its straight profile allows operators to reach channels, fillets, recesses, side walls, and the bottoms of dead-end holes that can be difficult to finish with larger abrasive accessories. The 120-grit construction produces a finer sanding pattern than coarser 50-, 60-, and 80-grit alternatives, making it useful for refining previously prepared metal surfaces. United Abrasives identifies ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel as suitable workpiece materials.
The United Abrasives 38066 uses a multi-layer, self-dressing construction that reveals fresh cutting abrasive as successive layers wear away, helping maintain effective sanding action during 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 upper operating speed limit and must be considered when selecting the tool and mandrel. Compared with smaller-diameter cartridge rolls, the 1/2" configuration offers a broader abrasive contact area for recessed surfaces with adequate clearance. Supplied in a box of 100, this 38066 supports recurring finishing requirements in machining facilities, toolrooms, fabrication shops, and industrial maintenance departments.
Type: Straight Cartridge Roll | Part Number: 38066 | Abrasive Material: Premium Aluminum Oxide | Diameter: 1/2" | Length: 1" | Arbor: 1/8" | Grit: 120 | 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 abrasive grain supports fine sanding, deburring, and surface blending on ferrous and non-ferrous metal components.
- 120-grit abrasive helps reduce visible machining marks and refine surfaces after initial sanding with coarser abrasive products.
- 1/2" diameter provides a relatively broad abrasive contact area for accessible internal features and recessed workpiece surfaces.
- 1" straight cylindrical configuration allows localized finishing along channels, fillets, side walls, and the bottoms of dead-end holes.
- Multi-layer, self-dressing construction exposes fresh cutting abrasive as successive layers wear away, helping maintain sanding effectiveness.
- Suitable for high-speed light deburring and flash removal when used within the manufacturer's specified operating speed limits.
- Quick removal and installation simplify abrasive replacement during multi-stage finishing operations.
- Supplied in boxes of 100 for convenient stocking and replenishment in machining, fabrication, and maintenance environments.
Applications:
- Precision machining and CNC finishing - Refining machining marks, smoothing minor burrs, and improving surface texture inside accessible grooves and recessed component features.
- Tool and die manufacturing - Finishing internal fillets, small cavities, and recessed contours where localized abrasive contact is required.
- Stainless steel fabrication - Performing fine sanding and surface blending on stainless steel and high-tensile steel components following initial preparation.
- Metal component production - Reducing sanding marks left by coarser abrasives and preparing localized surfaces for additional finishing operations.
- Industrial maintenance and repair - Smoothing small surface imperfections and refining recessed metal areas on machinery components, fittings, and repair parts.
FAQs:
- Q: What is the difference between United Abrasives 38066 and 38064 Straight Cartridge Rolls?
A: Both cartridge rolls feature a 1/2" diameter, 1" length, 1/8" arbor opening, and 26,000 RPM maximum operating speed. The 38066 uses finer 120-grit abrasive for surface refinement and light deburring, while the 38064 uses 80-grit abrasive for intermediate sanding and more substantial material removal. - Q: Is the United Abrasives 38066 suitable for removing heavy burrs?
A: The 120-grit cartridge roll is better suited to minor burr removal, surface blending, and fine sanding than aggressive stock removal. For pronounced burrs or deeper machining marks, a coarser 50-, 60-, or 80-grit cartridge roll may be more efficient before progressing to the 38066 for refinement. - Q: Can this cartridge roll be used on stainless steel?
A: Yes. United Abrasives identifies stainless steel and high-tensile steel among the suitable materials, along with ferrous and non-ferrous metals. When preventing cross-contamination is important, use abrasives dedicated to stainless steel rather than rolls previously used on carbon steel. - Q: Which mandrel is specified for the United Abrasives 38066?
A: The United Abrasives 2025-2026 catalog identifies mandrel part number 95105 for this cartridge roll. The roll has a 1/8" arbor opening. Verify correct mandrel fit, secure mounting, and compatibility with the selected rotary tool before operation. - Q: How many cartridge rolls are supplied, and what is their maximum operating speed?
A: United Abrasives part number 38066 is sold in a box of 100 cartridge rolls, each rated for a maximum operating speed of 26,000 RPM. The tool's maximum speed 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.)
- 1/2
- Length (in.)
- 1
- Arbor Hole (in.)
- 1/8
- Grit
- 120
- RPM
- 26000
- Mandrel Part
- 95105
- Box of
- 100
This product hasn't received any reviews yet. Be the first to review this product!