Dotco 12L1000-36LH Inline Die Grinder | 12-10 Series | 0.3 HP | 30000 RPM | 1/4" Collet | Front Exhaust

When high-speed detail grinding needs to stay controlled in a tight toolroom, fabrication, or deburring work, the Dotco 12L1000-36LH Inline Die Grinder delivers 0.3 HP of pneumatic power with a 30,000 RPM free speed for efficient material removal using compatible carbide burrs, rotary files, and mounted wheels. It's a 1/4" collet that accepts common shank-mounted abrasive accessories, while the inline body style keeps the tool and accessory aligned with the operator’s hand for close control during edge breaking, die work, and small-area finishing.

Part of the Dotco 12-10 Series, this model uses a lightweight composite housing, front exhaust, and the LH left-hand rotation option, which identifies a rotational orientation opposite standard right-hand models. The compact 6.0" body and 0.8 lb tool weight make it a practical choice for technicians who need a small pneumatic grinder for reaching into cavities, working around fixtures, or maintaining precision on detailed material removal tasks.

Type: Inline Die Grinder | Series: 12-10 Series | SKU: 12L1000-36LH | Power: 0.3 HP / 0.22 kW | Free Speed: 30,000 RPM | Collet Size: 1/4" | Abrasive Capacity: 1/2" Carbide Burr, 1" Mounted Wheel | Rotation: Left Hand | Housing Material: Composite | Length: 6.0" / 152 mm | Weight: 0.8 lb / 0.36 kg | Air Inlet: 1/4" NPT | Exhaust: Front | Air Pressure: 90 PSI / 620 kPa | Minimum Hose I.D.: 1/4" / 6.4 mm | Sound Level: ≤ 81 dB(A) | Vibration: < 2.5 m/s²

Features:

• 0.3 HP pneumatic motor provides controlled power for detail grinding, deburring, and light material removal.
• 30,000 RPM free speed supports small carbide burrs and mounted wheels that require high surface speed.
• 1/4" 300 Series 3-piece collet accepts common 1/4" shank rotary files, burrs, and compatible mounted abrasive accessories.
• Inline configuration helps keep the abrasive accessory aligned with the operator’s hand for precision work in confined areas.
• Front exhaust configuration matches applications and tool cribs standardized around front-exhaust Dotco 12-10 Series grinders.
• LH left hand rotation option supports setups that require the opposite rotational orientation from standard right-hand models.
• Composite housing keeps the tool light while supporting frequent handling in production, maintenance, and toolroom environments.
• Standard equipped with lock-off lever to help reduce the chance of unintended tool start-up.

Made in USA:

Applications:

• Die and mold work — blending parting lines, cleaning small cavities, shaping detailed surfaces, and using carbide burrs where access and control matter.
• Metalworking and fabrication — deburring cut edges, refining small weld areas, removing flash, and preparing localized surfaces before assembly or finishing.
• Aerospace and precision manufacturing — controlled material removal on fixtures, brackets, castings, and tight-access components when a compact inline grinder is preferred.
• Automotive, fleet, and machine shop service — cleaning ports, smoothing brackets, dressing castings, and handling small repair or restoration grinding tasks.
• Industrial MRO and toolroom maintenance — edge breaking, gasket cleanup, component touch-up, and general shop use with properly rated mounted accessories.

FAQs:

• Q: What does LH mean on the Dotco 12L1000-36LH?
  A: LH indicates left hand rotation. It identifies this model as the left-hand-rotation version of the 12L1000-36 inline grinder family.
• Q: What accessories can be used with this die grinder?
  A: This model uses a 1/4" collet and is rated for 1/2" carbide burrs and 1" mounted wheels. Always confirm that the accessory is compatible with the tool’s collet size, abrasive capacity, and 30,000 RPM speed.
• Q: Is this the correct tool for 3" cut-off wheels?
  A: No. The -36 termination is a 1/4" collet configuration for rotary files, carbide burrs, and mounted wheels. Use the proper guarded cut-off wheel model when the job requires a 3" cut-off wheel.
• Q: What air supply does the 12L1000-36LH require?
  A: Tool performance is rated at 90 PSI / 620 kPa. Use clean, dry compressed air with at least a 1/4" inside-diameter hose, and pair the tool with proper filtration, regulation, and lubrication.
• Q: Why choose front exhaust on an inline die grinder?
  A: Front exhaust routes exhaust through the front-end configuration of the tool. It is commonly selected when matching existing front-exhaust Dotco grinders or when a shop’s process specification calls for that exhaust style.

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