Dotco 12L2081-01 Inline Grinder | 12-20 Series | 0.6 HP | 20,000 RPM | 1/4" Collet | Composite Housing | Rear Exhaust

When you need controlled material removal on dies, molds, machined parts, and fabricated components, the Dotco 12L2081-01 inline grinder delivers a balanced mix of speed, power, and hand control. This 12-20 Series air grinder runs at 20,000 RPM free speed (no-load tool speed), giving carbide burrs and mounted wheels the velocity needed for burr removal, edge breaking, blending, and small-area finishing. Its 0.6 HP motor provides more cutting authority than lower-horsepower precision grinders, while the 1/4" collet grips are compatible with shank-mounted accessories for common die grinding work.

The composite housing keeps the tool compact and manageable for bench, fixture, and handheld work, and the rear exhaust configuration routes spent air away from the grinding point to help keep debris and exhaust flow out of the immediate work area. A lock-off lever throttle (a safety-style lever that helps prevent unintended starts) makes the 12L2081-01 a practical choice for production deburring stations, tool rooms, maintenance shops, and general industrial finishing tasks.

Type: Inline Die Grinder | Series: 12-20 Series | Model: 12L2081-01 | Power: 0.6 HP / 0.45 kW | Free Speed: 20,000 RPM | Collet Size: 1/4" | Collet Series: 200 Series | Exhaust: Rear | Throttle Type: Lock-Off Lever | Abrasive Capacity: 3/4" Carbide Burr, 1.5" Mounted Wheel | Housing: Composite | Weight: 1.4 lb / 0.64 kg | Length: 6.9" / 175 mm | Air Inlet: 1/4" | Minimum Hose I.D.: 1/4" / 6.4 mm | Rated Air Pressure: 90 PSI / 620 kPa

Features:

• 0.6 HP motor supports burr work, light shaping, edge cleanup, and finishing on metal components.
• 20,000 RPM free speed provides an effective operating range for 3/4" carbide burrs and 1.5" mounted wheels when accessories are properly speed-rated.
• 1/4" 200 Series collet accepts common shank-mounted grinding accessories used in die and mold work.
• Rear exhaust configuration helps direct exhaust air away from the workpiece and forward line of sight.
• Composite housing gives the tool a compact inline body for controlled handheld positioning.
• Lock-off lever throttle adds a safety-focused start control for shop and production environments.
• Standard equipment includes the applicable collet and collet wrenches.

Made in USA:

Applications:

• Die and mold shops — cleaning parting lines, removing small burrs, and blending detail areas with carbide burrs.
• Metal fabrication — smoothing drilled holes, breaking sharp edges, and refining weld-adjacent areas where a larger grinder is too bulky.
• Industrial maintenance and MRO — deburring replacement parts, cleaning brackets, and preparing small metal surfaces during equipment repair.
• Machining and production cells — touch-up grinding on aluminum, steel, and cast components after cutting, drilling, or milling operations.
• Automotive and garage work — gasket surface cleanup, bracket modification, and general air-tool finishing when paired with a properly sized compressor and accessories.

FAQs:

• Q: What accessories fit the Dotco 12L2081-01?
  A: This grinder uses a 1/4" collet for compatible shank-mounted accessories. The catalog lists capacity for a 3/4" carbide burr and a 1.5" mounted wheel, but the accessory’s maximum RPM rating must always meet or exceed the tool’s 20,000 RPM speed.
• 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. This can help reduce air blast near the grinding point and is useful when working close to chips, dust, or fine debris.
• Q: Does this grinder include the collet and wrenches?
  A: Yes. The catalog lists standard equipment as the applicable collet and collet wrenches, so the basic tool-holding hardware is included.
• Q: What air supply does this grinder require?
  A: Manufacturer data rates this tool at 90 PSI / 620 kPa and lists a 1/4" minimum hose I.D. Air consumption was not provided in the available source data, so verify compressor capacity before specifying this tool for continuous production use.
• Q: Is this the right grinder for fine precision work?
  A: It is well suited to controlled inline die grinding with 1/4" shank accessories. For very fine engraving, tiny burrs, or ultra-high-speed detail deburring, a smaller pencil grinder may be a better match.

Looking for more information about Dotco Grinder? Click here to view the Catalog

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