Dotco 12L1112-36 Inline Extended Grinder | 12-11 Series | 0.3 HP | 25,000 RPM | 1/4" Collet | Composite Housing | Front Exhaust

Built for deburring and finish grinding in recessed areas, the Dotco 12L1112-36 Inline Extended Grinder combines a 5" extension with a compact inline body so users can reach into cavities, ports, fixtures, and tight metalwork without moving to a bulkier grinder. Its 0.3 HP / 0.22 kW pneumatic motor and 25,000 RPM free speed are suited for controlled material removal with properly rated carbide burrs, mounted points, and mounted wheels.

As part of the Dotco 12-11 Series, this front-exhaust extended die grinder uses a 1/4" 300 Series collet, making it compatible with common industrial finishing accessories within the manufacturer’s rated abrasive capacity. The composite housing helps keep the tool weight to 1.3 lbs / 0.59 kg, while multiple industrial bearings support balance and low vibration during detailed grinding, blending, and edge cleanup work.

Type: Inline Extended Die Grinder | Series: 12-11 Series | Model: 12L1112-36 | Power: 0.3 HP / 0.22 kW | Free Speed: 25,000 RPM | Collet Size: 1/4" | Collet Type: 300 Series | Extension: 5" / 127 mm | Abrasive Capacity: 1/2" Carbide Burr, 1" Mounted Wheel | Housing Material: Composite | Exhaust: Front | Weight: 1.3 lbs / 0.59 kg | Overall Length: 10.9" / 277 mm | Air Inlet: 1/4" NPT | Minimum Hose I.D.: 1/4" | Rated Air Pressure: 90 PSI / 620 kPa

Features:

• 5" extended housing improves access to recessed surfaces, casting pockets, ports, molds, and confined work areas.
• 25,000 RPM free speed supports controlled grinding and finishing where accessory speed rating and surface control both matter.
• 0.3 HP / 0.22 kW motor provides useful output for deburring, blending, and small-area material removal.
• 1/4" 300 Series collet accepts common carbide burrs, mounted points, and mounted wheels within the rated abrasive capacity.
• Composite housing reduces tool weight for better handling during repeated positioning and detail work.
• Multiple industrial bearings help maintain balance and low vibration on an extended-reach grinder.
• Front exhaust configuration directs exhaust at the front of the tool for users who prefer this airflow layout.
• Standard equipment includes applicable collet and collet wrenches.

Made in USA:

Applications:

• Fabrication and welding shops — cleaning weld details, removing burrs, and blending small metal surfaces after cutting or fitting.
• Tool and die work — reaching into pockets, cavities, mold details, and fixture areas where standard-length grinders may not provide access.
• Foundry and casting cleanup — removing flash, parting-line burrs, and small surface imperfections on cast components.
• Transportation and fleet maintenance — dressing brackets, housings, repair patches, and tight mechanical surfaces during service work.
• Automotive and garage repair — port cleanup, gasket-area preparation, and general deburring when paired with a properly rated accessory.

FAQs:

• Q: What is the main difference between this model and the 28,000 RPM version?
  A: The 12L1112-36 runs at 25,000 RPM, while the 12L1101-36 runs at 28,000 RPM. Both are 0.3 HP 12-11 Series extended grinders with 1/4" collets, but accessory speed rating and the user’s preferred grinding feel should guide the final selection.
• Q: What does the 5" extension help with?
  A: The extended housing gives the operator additional reach into cavities, ports, recesses, and other areas where a standard inline die grinder may be too short to reach comfortably.
• Q: Which accessories fit the Dotco 12L1112-36?
  A: This grinder uses a 1/4" collet and is rated for a 1/2" carbide burr or 1" mounted wheel. Any accessory used must fit the collet correctly and be rated at or above 25,000 RPM.
• Q: Is this grinder supplied with a collet and wrenches?
  A: Yes. Manufacturer product information lists the applicable collet and collet wrenches as standard equipment.
• Q: What air setup should be used with this tool?
  A: Cleco rates tool performance at 90 PSI / 620 kPa, and the listed minimum hose I.D. is 1/4". Use clean, regulated, lubricated air and avoid undersized hoses that can restrict tool performance.

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