United Abrasives Straight Cartridge Roll | 38055 | 3/8" Diameter | 60 Grit | Sold by Box of 100

Designed for deburring extended grooves, smoothing rough machining marks, and sanding narrow recessed metal surfaces, the United Abrasives 38055 Straight Cartridge Roll combines a compact diameter with additional abrasive working length. This cartridge roll features a 3/8" diameter, 2" length, and 60-grit premium aluminum oxide abrasive, making it suitable for coarse-to-intermediate sanding, flash removal, and localized metal surface preparation. Its straight cylindrical profile helps operators reach channels, internal fillets, recessed side walls, and the bottoms of dead-end holes where conventional sanding discs may be difficult to position. The 60-grit abrasive provides effective material removal while producing a finer scratch pattern than coarser grinding abrasives. United Abrasives identifies ferrous metals, non-ferrous metals, stainless steel, and high-tensile steel as suitable workpiece materials.

Unlike shorter cartridge rolls of the same diameter, the United Abrasives 38055 offers a 2" abrasive length for sanding along extended internal surfaces, provided the workpiece offers adequate working clearance. Its multi-layer, self-dressing construction exposes fresh abrasive grain as successive layers wear away, helping maintain cutting effectiveness during repeated use. The 1/8" arbor opening requires a compatible cartridge roll mandrel for secure installation on an appropriately rated rotary tool. With a maximum operating speed of 26,000 RPM, the roll is intended for use only with equipment that meets the manufacturer's mounting and speed requirements. Supplied in a box of 100, the 38055 supports regular deburring and sanding operations in machine shops, metal fabrication facilities, toolrooms, and maintenance departments.

Type: Straight Cartridge Roll | Part Number: 38055 | Abrasive Material: Premium Aluminum Oxide | Diameter: 3/8" | Length: 2" | Arbor: 1/8" | Grit: 60 | Max RPM: 26,000 | Quantity: 100 per Box | Material Application: Ferrous Metals, Non-Ferrous Metals, Stainless Steel, High-Tensile Steel

Features:

• Premium aluminum oxide abrasive grain supports effective sanding, deburring, and blending on ferrous and non-ferrous metals.
• 60-grit abrasive provides coarse-to-intermediate cutting action for removing machining burrs, flash, and localized surface irregularities.
• 3/8" diameter helps operators work inside relatively narrow openings, grooves, and recessed metal features.
• 2" abrasive length provides additional contact along elongated side walls and channels compared with shorter cartridge rolls of the same diameter.
• Straight cylindrical construction is well suited to sanding internal fillets, recesses, and the bottoms of accessible dead-end holes.
• Multi-layer, self-dressing design exposes fresh cutting abrasive as the outer layers wear away, helping sustain sanding effectiveness.
• Quick removal and installation facilitate abrasive changes during repeated machining and finishing operations.
• Sold in boxes of 100 for organized abrasive replenishment and recurring metalworking applications.

Applications:

• Machining and CNC operations - Removing burrs and blending tool marks along elongated grooves, internal channels, and recessed machined features.
• Metal fabrication - Cleaning up cutting flash and rough edges in narrow sections where a small-diameter cylindrical abrasive can reach.
• Tool and die work - Sanding accessible internal fillets, extended tooling recesses, and narrow contoured areas requiring localized abrasive contact.
• Stainless steel and alloy steel finishing - Performing initial deburring and surface preparation on recessed stainless steel and high-tensile steel components.
• Industrial maintenance and repair - Smoothing minor imperfections inside metal fittings, machine components, and accessible recessed repair areas.

FAQs:

• Q: What makes the United Abrasives 38055 different from the 38048 cartridge roll?
  A: Both models use 3/8" diameter, 60-grit aluminum oxide abrasive with a 1/8" arbor opening and 26,000 RPM maximum operating speed. The 38055 has a longer 2" abrasive length, while the 38048 measures 1-1/2" long. Choose the longer model when the workpiece geometry benefits from additional abrasive contact length.
• Q: When should I choose 60 grit instead of 80 grit?
  A: Choose 60 grit when removing noticeable burrs, flash, or rough machining marks is the priority. An 80-grit roll, such as United Abrasives 38056, produces a finer sanding pattern and is better suited to intermediate surface blending after initial material removal.
• Q: Can the 38055 be used for sanding stainless steel?
  A: Yes. United Abrasives identifies stainless steel and high-tensile steel as suitable materials, along with ferrous and non-ferrous metals. Use cartridge rolls dedicated to stainless steel when avoiding contamination from previous carbon steel work is important.
• Q: What mandrel does United Abrasives 38055 require?
  A: The 38055 has a 1/8" arbor opening and requires a compatible cartridge roll mandrel. Confirm the manufacturer's recommended mandrel part number, correct engagement for the 2" roll length, and compatibility with the rotary tool before ordering.
• Q: What is the maximum operating speed of the United Abrasives 38055?
  A: The manufacturer specifies 26,000 RPM as the maximum operating speed. The selected rotary tool must not exceed this rating, and the mandrel must also be suitable for the intended operating conditions.
• Q: How many rolls are included in one box?
  A: United Abrasives part number 38055 is sold in a box of 100 straight cartridge rolls. Verify separately whether any mounting accessories are supplied with the product.

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For help choosing the correct United Abrasives Straight Cartridge Rolls for your application, please call (800) 608-5210 or email info@intlairtool.com