Dotco 12R0410-18 Inline Precision Grinder | 12-04 Series | 0.1 HP | 60,000 RPM | 1/8" Collet | Composite Housing | Rear Exhaust

Built for precision deburring, small-edge cleanup, and controlled finishing work, the Dotco 12R0410-18 Inline Precision Grinder gives machine shops, toolrooms, and production benches a fast pencil-style grinder for work that requires more control than a larger die grinder. The 12-04 Series configuration combines 0.1 hp (0.074 kW) output with a free speed of 60,000 RPM, giving small carbide burrs and diamond pins the speed needed to cut cleanly in fine metal removal tasks. Its 1/8" collet (the sleeve that grips the accessory shank) accepts common fractional-shank precision grinding accessories, while the rear exhaust helps direct air away from the cutting point and the operator’s line of sight.

The composite housing keeps the tool light in hand, and the inline body shape supports pen-like control when working around holes, slots, contours, and machined edges. With a listed abrasive capacity of 1/4" carbide burr or 1/4" diamond pin, this grinder is best suited for detail finishing, burr removal, and light material correction rather than aggressive stock removal or large-mounted-wheel grinding.

Type: Inline Precision Grinder | Series: 12-04 Series | Model: 12R0410-18 | Power: 0.1 hp / 0.074 kW | Free Speed: 60,000 RPM | Housing: Composite | Exhaust: Rear | Collet Size: 1/8" | Abrasive Capacity: 1/4" Carbide Burr, 1/4" Diamond Pin | Weight: 0.3 lb / 0.1 kg | Length: 5.8" / 147 mm | Air Inlet Size: 1/8" | Performance Rating: 90 PSI / 620 kPa

Features:

• 60,000 RPM free speed supports clean cutting action with small burrs and diamond pins used for detail finishing work.
• 0.1 hp motor provides controlled power for precision deburring and light metal removal on small components.
• Industrial bearing construction supports consistent spindle performance during fine grinding and finishing tasks.
• Compact, light weight composite housing helps reduce hand fatigue when working at the bench or inside fixtures.
• Inline body shape gives the operator pencil-style control for edges, bores, slots, and other narrow work areas.
• Roll throttle equipped for fingertip control while positioning the accessory against delicate features.
• Rear exhaust and included overhose help route discharged air away from the work surface.
• Supplied with applicable collet, collet wrenches, collet guard, 5 ft air supply hose, and 1 ft overhose.

Made in USA:

Applications:

• Machine shops and toolrooms — deburring machined edges, cleaning drilled holes, and removing small raised burrs after milling, turning, or drilling.
• Die and mold finishing — touching up narrow profiles, cavities, parting lines, and detail features with compatible 1/8" shank accessories.
• Production assembly benches — preparing small metal parts before fit-up, inspection, coating, or final assembly.
• Maintenance and MRO departments — correcting minor defects on brackets, fixtures, fastener holes, and service parts without moving to a larger grinder.
• Advanced home shops and hobby machining — fine deburring and detail grinding when a properly regulated pneumatic air supply is available.

FAQs:

• Q: What accessory shank size fits the Dotco 12R0410-18?
  A: This model uses a 1/8" collet, so it is intended for compatible 1/8" shank burrs, diamond pins, and other approved precision grinding accessories.
• Q: Is this grinder for heavy stock removal?
  A: No. The 12R0410-18 is a precision pencil grinder for detail deburring, fine finishing, and light metal removal. For larger burrs, mounted wheels, or aggressive grinding, choose a die grinder with the proper power, speed, and accessory capacity.
• Q: Why does 60,000 RPM matter on a pencil grinder?
  A: Small burrs and pins remove material more effectively at high speed. The 60,000 RPM rating helps maintain cutting action on fine details, but every accessory must be rated for at least the tool’s maximum speed.
• Q: What does rear exhaust do?
  A: Rear exhaust directs spent air toward the back of the tool instead of the nose. This can help keep chips, air blast, and oil mist away from the immediate grinding point.

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