Cleco MP4458 Inline Die Grinder | MP44 Series | 0.5 HP | 25,000 RPM | 1/4" Collet | Front Exhaust

Built for faster straight-access grinding and deburring, the Cleco MP4458 inline die grinder pairs a higher-output 0.5 HP air motor with 25,000 RPM free speed for controlled material removal with compatible carbide burrs, mounted points, and small abrasive accessories. It's 1/4" collet fits common die grinder tooling, while the inline body helps operators reach directly into slots, holes, housings, and long part features where a right-angle grinder may be harder to position.

Part of the MP44 Series, the MP4458 is suited to MRO work, fabrication cleanup, automotive repair, and lower-duty production tasks where a compact pneumatic grinder is preferred over a larger wheel grinder. The front exhaust directs air toward the work end of the tool, which can help clear chips and debris from the immediate grinding area during burr work, edge cleanup, and small-feature finishing.

Type: Inline Die Grinder | Series: MP44 Series | Model: MP4458 | Power: 0.5 HP | Free Speed: 25,000 RPM | Collet Size: 1/4" | Exhaust: Front | Air Inlet: 1/4" NPT Female | Minimum Hose Size: 3/8" | CFM @ Full Load: 23.0 | Average CFM @ 15 Second Run Time: 5.75 | Overall Length: 6-1/8" | Tool Weight: 1.3 lb. | Maximum Burr Diameter: 1" | Wheel Diameter: 1-1/2" | Throttle: Safety Lever | Grip Style: Barrel Grip

Features:

• Inline grinder orientation supports straight, direct access into bores, slots, internal edges, and narrow work areas.
• 0.5 HP air motor provides more cutting power than smaller 0.3 HP die grinders for routine shop grinding and deburring.
• 25,000 RPM free speed supports fast material removal with properly rated burrs, mounted points, and small abrasive accessories.
• 1/4" collet accepts widely used die grinder accessories for metal cleanup, shaping, blending, and finishing tasks.
• Front exhaust helps move air toward the work area, which can assist with clearing chips during detail grinding.
• Safety lever throttle helps reduce accidental starts while still allowing controlled operation during repeated use.
• Double shielded ball bearing construction supports smooth operation in normal grinding and finishing work.
• Compact 6-1/8" overall length and 1.3 lb. tool weight help keep the grinder maneuverable around fixtures, castings, and assembled parts.

Made in USA:

Applications:

• Industrial maintenance and MRO — deburring replacement parts, cleaning worn edges, and preparing metal surfaces during repair work.
• Metal fabrication — blending weld starts and stops, removing burrs after cutting, and refining small details on brackets, frames, and fixtures.
• Automotive and fleet repair — gasket surface cleanup, rust removal, casting touch-up, and small grinding jobs in engine bays or underbody areas.
• Manufacturing and lower-duty production — finishing machined parts, breaking sharp edges, and cleaning components before coating or inspection.
• Toolroom and die work — shaping slots, relieving small interference points, and working inside part features where straight access is useful.

FAQs:

• Q: What is the Cleco MP4458 used for?
  A: The MP4458 is used for inline grinding, deburring, shaping, and finishing with compatible die grinder accessories. It is best suited for small-area material removal rather than large wheel grinding.
• Q: What size accessories fit this die grinder?
  A: The tool uses a 1/4" collet and is listed with capacity for up to a 1" burr diameter and 1-1/2" wheel diameter. Always verify the accessory shank size and maximum safe operating speed before mounting it.
• Q: What does front exhaust mean on the MP4458?
  A: Front exhaust means the tool routes spent air toward the front of the grinder. This can help clear chips at the workpiece, but users should account for where debris will be directed during grinding.
• Q: How much air does the MP4458 require?
  A: The available product data lists 23.0 CFM at full load and 5.75 average CFM at a 15-second run time. For best results, use a properly regulated air supply, a 3/8" minimum hose, and clean, dry air.
• Q: Is this the right grinder for heavy stock removal?
  A: No. This is an inline die grinder for burrs, mounted points, and small abrasive accessories. For aggressive grinding with larger wheels, choose a grinder rated for the required wheel size, guard configuration, and power level.

Looking for more information about Cleco Die Grinder? Click here to view the Catalog

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