Dotco 12L1046-36 Inline Grinder | 12-10 Series | 0.3 HP | 18,000 RPM | 1/4" Collet | Composite Housing | Front Exhaust

Built for controlled deburring, edge blending, and mounted-point grinding, the Dotco 12L1046-36 inline grinder gives technicians a compact straight-line tool for precision material removal in metalworking, maintenance, fabrication, and composite finishing environments. Its 0.3 HP motor provides practical power for small burs, rotary files, and abrasive points, while the 18,000 RPM free speed supports clean cutting action when paired with accessories rated at or above the tool speed. The 1/4" collet accepts common 1/4" shank accessories, and the inline body keeps the grinding accessory aligned with the user’s hand for better control on edges, holes, slots, and surface-prep work.

Part of the Dotco 12-10 Series, this model combines a composite housing with a front exhaust configuration for users who prefer exhaust discharge at the nose of the tool rather than through the rear handle area. The straight grinder format is especially useful where a right-angle head is not needed and where operators need a direct approach to the workpiece.

Type: Inline Grinder | Brand: Dotco | Model: 12L1046-36 | Series: 12-10 Series | Power: 0.3 HP | Free Speed: 18,000 RPM | Collet Size: 1/4" | Housing: Composite | Exhaust: Front Exhaust

Features:

• 0.3 HP pneumatic motor provides usable power for deburring, blending, and light grinding with compatible mounted accessories.
• 18,000 RPM free speed helps maintain efficient abrasive action on small contact areas, edges, and detailed finishing work.
• 1/4" collet accepts common 1/4" shank carbide burs, mounted points, rotary files, and abrasive accessories rated for the tool speed.
• Inline grinder configuration keeps the accessory in line with the hand position for direct control during straight-in grinding and finishing tasks.
• Composite housing gives the tool a practical grip surface for repeated use in shop, maintenance, and production environments.
• Front exhaust directs air discharge through the front of the tool, which may suit workstations where rear exhaust routing is not preferred.
• Dotco 12-10 Series platform is suited to precision material removal where access, control, and accessory compatibility matter more than large wheel capacity.

Made in USA:

Applications:

• Metal fabrication and welding — cleaning weld starts and stops, blending small edges, and removing burrs from drilled or machined features.
• Industrial maintenance and MRO — touching up brackets, housings, fastener holes, and replacement parts during equipment repair.
• Aerospace and composite work — controlled trimming, detail grinding, and localized finishing when used with the correct approved accessories and procedures.
• Automotive and fleet repair — gasket surface cleanup, rust spot removal, casting flash cleanup, and small-area grinding where a full-size grinder is too large.
• Toolroom and machine shop work — deburring slots, ports, bores, and machined edges with 1/4" shank mounted points or carbide burs.

FAQs:

• Q: What accessories fit the Dotco 12L1046-36 inline grinder?
  A: This grinder uses a 1/4" collet, so it is intended for compatible 1/4" shank mounted points, carbide burs, rotary files, and similar accessories. Always confirm the accessory shank size and maximum operating speed before use.
• Q: Is 18,000 RPM appropriate for every grinding accessory?
  A: No. The accessory must be rated for at least 18,000 RPM or higher. Do not use accessories with a lower maximum speed rating, even if the shank fits the collet.
• Q: What does front exhaust mean on this grinder?
  A: Front exhaust means the tool discharges air toward the front or nose area of the grinder. This can be useful in some workstation layouts, but the operator should consider chip, dust, and air direction at the point of use.
• Q: Is this a die grinder or a wheel grinder?
  A: This is an inline grinder with a 1/4" collet, commonly used like a straight die grinder with mounted accessories. It is not a right-angle wheel grinder and should not be treated as a wheel-capacity tool unless the manufacturer specifically lists an approved wheel setup.
• Q: Can this be used in a home garage?
  A: Yes, if the air supply can support the tool and the user selects properly rated accessories. It is best suited for users who need controlled deburring, cleaning, and small-area material removal rather than broad surface grinding.

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