Dotco 12R0410-43 Inline Precision Grinder | 12-04 Series | 0.1 HP | 60,000 RPM | 3 mm Collet | Composite Housing | Rear Exhaust

Built for close-control deburring, fine metal removal, and small-part cleanup, the Dotco 12R0410-43 Inline Precision Grinder combines a 0.1 HP / 0.074 kW motor with 60,000 RPM free speed for use with small compatible carbide burrs and diamond pins. It's a 3 mm collet that supports metric-shank accessories used for detail grinding, while the pencil-style inline body gives technicians better access to edges, holes, ports, and confined surfaces where larger die grinders are too bulky.

Part of the Dotco 12-04 Series, this rear-exhaust precision grinder uses a lightweight composite housing and roll throttle for fingertip control during short-cycle finishing work. The rear exhaust routes spent air away from the work area, helping reduce debris disturbance during small-feature deburring, and the 4 ft / 1.2 m overhose helps keep the air line managed around the operator’s hand.

Type: Inline Precision Grinder | Series: 12-04 Series | SKU: 12R0410-43 | Motor: 0.1 HP / 0.074 kW | Free Speed: 60,000 RPM | Collet Size: 3 mm | Abrasive Capacity: 1/4" Carbide Burr, 1/4" Diamond Pin | Housing Material: Composite | Exhaust: Rear | Overhose: 4 ft / 1.2 m | Weight: 0.3 lb / 0.14 kg | Length: 5.8" / 147 mm | Air Inlet: 1/8" NPT

Features:

• 60,000 RPM free speed supports controlled detail work with properly rated small burrs and diamond pins.
• 0.1 HP / 0.074 kW motor output is sized for precision deburring and fine metal removal rather than large-scale stock removal.
• 3 mm collet accepts compatible metric-shank accessories for small features, ports, slots, and close-tolerance edges.
• Industrial bearing provides long life expectancy in repeated precision grinding applications.
• Roll throttle equipped for fingertip start and speed control from the inline grinder body.
• Compact, lightweight composite housing helps reduce hand fatigue during detailed cleanup work.
• Rear exhaust and overhose configuration route air away from the immediate grinding area.

Made in USA:

Applications:

• Precision metalworking and machining — removing small burrs from drilled holes, milled edges, slots, and tight part features.
• Toolroom and mold work — cleaning small contours, ports, and detail surfaces with compatible carbide burrs or diamond pins.
• Aerospace and composites shops — localized material removal where a full-size die grinder would be too large for controlled access.
• Welding and fabrication benches — touching up small spatter marks, sharp edges, and access-limited imperfections after cutting or welding.
• Automotive, motorsport, and DIY garage detail work — careful cleanup on brackets, ports, small castings, and hard-to-reach metal edges.

FAQs:

• Q: What accessories can be used with the Dotco 12R0410-43?
  A: This model uses a 3 mm collet and is listed with 1/4" carbide burr and 1/4" diamond pin abrasive capacity. Always confirm that the accessory shank fits the collet and that the accessory speed rating equals or exceeds 60,000 RPM.
• Q: Is this grinder for heavy stock removal?
  A: No. This is a precision inline grinder for fine deburring, small-feature cleanup, and controlled metal removal. For heavier grinding or larger mounted points, choose a higher-horsepower die grinder with the correct collet size and speed range.
• Q: What does rear exhaust mean on this pencil grinder?
  A: Rear exhaust directs spent air toward the back of the tool instead of toward the workpiece. On precision grinding jobs, that helps keep airflow away from the immediate contact point and can make detail work easier to control.
• Q: Should this Dotco turbine grinder be lubricated?
  A: Source data states to use dry air at 90 PSI maximum and not to lubricate turbine grinders, because lubrication can be detrimental to turbine tool operation and life. Do not attach a quick-disconnect fitting directly to the tool.

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