Dotco 12L2580-01 Inline Grinder | 12-25 Series | 0.9 HP | 23,000 RPM | 1/4" Collet | Composite Housing | Rear Exhaust

Built for fast burr work, edge cleanup, and controlled material removal, the Dotco 12L2580-01 inline grinder delivers 0.9 HP of pneumatic power in a compact 12-25 Series body. Its 23,000 RPM free speed helps operators keep carbide burrs cutting efficiently on metal, composites, plastics, and castings, while the 1/4" 200 Series collet accepts common die grinder accessories used for deburring, porting, blending, and finishing. The inline configuration keeps the spindle in line with the operator’s grip, which is useful when reaching into pockets, along edges, or across longer workpieces where a right-angle head is not required.

The composite housing helps reduce tool weight during repetitive grinding tasks, and the rear exhaust routes air away from the work surface to help keep chips and grinding dust from being blown back across the contact area. Rated for operation at 90 PSI / 620 kPa, this Dotco die grinder is suited for production deburring, MRO repair benches, aerospace and composite shops, automotive fabrication, and general metalworking where a high-speed 1/4" collet grinder is needed.

Type: Inline Die Grinder | Brand: Dotco | Model: 12L2580-01 | Series: 12-25 Series | Power: 0.9 HP / 0.67 kW | Free Speed: 23,000 RPM | Collet Size: 1/4" | Collet Series: 200 Series | Housing: Composite | Exhaust: Rear | Abrasive Capacity: 1/2" carbide burr, 1.5" mounted wheel | Weight: 1.8 lbs / 0.82 kg | Length: 7.4" / 188 mm | Air Inlet: 1/4" NPT | Minimum Hose I.D.: 5/16" / 7.9 mm | Rated Air Pressure: 90 PSI / 620 kPa

Features:

• 0.9 HP motor provides the output needed for larger burr work, blending, and general material removal with compatible accessories.
• 23,000 RPM free speed supports efficient cutting action with properly rated carbide burrs and mounted wheels.
• 1/4" 200 Series collet accepts common die grinder accessories used in deburring, finishing, and shaping operations.
• Ergonomic composite housing keeps the tool lightweight for repetitive bench, fixture, and production work.
• Rear exhaust directs air away from the work area, helping reduce chip blowback across the grinding point.
• High power-to-weight ratio helps operators remove material without moving up to a larger, heavier grinder.
• Standard equipment includes the applicable collet and collet wrenches for accessory changes.
• Optional collet guard 01-2047PT is supplied separately when additional point-of-use guarding is required.

Made in USA:

Applications:

• Metal fabrication and welding shops — removing burrs, blending weld starts and stops, cleaning small edges, and shaping openings with carbide burrs.
• Aerospace and composite work — trimming, touch-up grinding, and controlled material removal on components where a compact inline grinder improves access.
• Automotive and motorsports fabrication — porting, gasket surface cleanup, bracket modification, and general die grinder work in garage or race shop settings.
• Industrial maintenance and MRO — cleaning castings, repairing worn edges, removing small defects, and preparing parts before assembly or refinishing.
• Toolroom and production deburring — repetitive edge finishing on machined parts, fixtures, housings, and small production components.

FAQs:

• Q: What accessories fit the Dotco 12L2580-01?
  A: This model uses a 1/4" 200 Series collet and is listed for a 1/2" carbide burr or 1.5" mounted wheel capacity. Always confirm the accessory shank size and maximum operating speed before installation.
• Q: What does rear exhaust mean on an inline grinder?
  A: Rear exhaust routes spent air toward the back of the tool instead of out the front near the workpiece. This helps keep chips, dust, and grinding debris from being blown across the contact area.
• Q: Can this grinder be used with mounted stones or abrasive wheels?
  A: Yes, when the mounted abrasive is compatible with the 1/4" collet and rated at or above the grinder’s 23,000 RPM free speed. Never use an abrasive accessory with a lower speed rating than the tool.
• Q: What air hose size should be used?
  A: The manufacturer lists a minimum hose inside diameter of 5/16" / 7.9 mm. Using undersized hose can reduce grinder speed and cutting performance under load.
• Q: Is this the same as a pencil grinder?
  A: No. This is a 1/4" inline die grinder with 0.9 HP output, used for larger burrs and mounted wheels. Pencil grinders are typically smaller, higher-speed tools with 1/8" collets for fine detail work.

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Need help selecting the correct Dotco Grinders for your application? Please call (800) 608-5210 or email info@intlairtool.com