Chicago Pneumatic Extended Shaft Straight Die Grinder | CP3109-15ES | 15000 RPM | 1/4" Collet

Built for extended-reach deburring, grinding, contouring, and cleaning, the Chicago Pneumatic CP3109-15ES straight die grinder delivers 15,000 RPM free speed for controlled work with carbide burrs, mounted points, abrasive wheels, and flap wheels. Its 1/4" / 6.35 mm collet capacity supports common shank-mounted accessories, while the 0.8 HP / 600 W pneumatic motor gives fabrication, foundry, maintenance, and production teams useful power for repeated material removal. The extended straight housing helps reach deeper into castings, welded assemblies, machine parts, and recessed edges where a standard straight die grinder may not provide enough access.

The CP3109-15ES sits in Chicago Pneumatic's high-durability CP3109 die grinder range, with manufacturer-listed maintenance intervals up to 2,000 hours under specified operating conditions. A rear exhaust directs spent air away from the work surface, while the safety lever starting system helps reduce accidental start risk during handling and setup. The aluminum body with composite over-sleeve provides a manageable grip surface during repeated grinding, cleaning, chamfering, and finishing work in industrial shop environments.

Type: Extended Shaft Straight Die Grinder | Model: CP3109-15ES | SKU: 6151701550 | Free Speed: 15,000 RPM | Power: 0.8 HP / 600 W | Collet Capacity: 1/4" / 6.35 mm | Collet System: Erickson Series 200 Type | Air Consumption at Load: 31 CFM / 15 l/s | Air Inlet: 3/8" BSP | Working Pressure: 90 PSI / 6.3 bar | Min. Hose Diameter: 0.38" / 10 mm | Length: 14.21" / 361 mm | Weight: 2.87 lb / 1.3 kg | Sound Pressure: 76 dB(A) | Sound Power: 87 dB(A) | Vibration Level: 2.5 m/s² | Vibration Uncertainty K: 1.5 m/s² / 5 ft/s² | Angle Type: Straight | Exhaust: Rear | Governor Type: Ball | Main Material: Aluminum with Composite Over-Sleeve | Rotative Inlet: No | Spindle Lock: No | Starting System: Safety Lever

Features:

• Extended straight housing improves access into recessed surfaces, casting pockets, welded assemblies, and hard-to-reach grinding points.
• 15,000 RPM free speed supports controlled deburring, grinding, contouring, cleaning, and finishing with compatible mounted accessories.
• 0.8 HP / 600 W pneumatic motor provides productive power for repeated material removal in fabrication, foundry, and maintenance work.
• 1/4" / 6.35 mm collet capacity supports common carbide burrs, mounted points, and shank-mounted abrasive accessories.
• Erickson Series 200 collet system helps hold compatible accessories securely when the correct collet is installed.
• Rear exhaust directs spent air away from the work surface and helps keep the operator's immediate line of sight clearer.
• Streamlined safety lever helps reduce accidental start risk during tool handling, setup, and daily operation.
• Composite over-sleeve provides an insulated, more manageable grip surface during repeated grinding and finishing tasks.

Applications:

• Metal fabrication: deburring drilled holes, cleaning cut edges, chamfering parts, and blending small weld areas where extra reach is helpful.
• Foundry and casting cleanup: removing flash, parting lines, and surface defects inside casting features, pockets, and recessed profiles.
• Industrial maintenance and MRO: smoothing repair parts, cleaning machine components, preparing brackets, and correcting fit-up surfaces.
• Machining and toolroom work: edge breaking, contour correction, and finishing on fixtures, dies, molds, and machined parts.
• Vehicle and equipment repair: working around frames, brackets, panels, and fabricated repair pieces in compressed-air service environments.

FAQs:

• Q: What is the CP3109-15ES best used for?
  A: The CP3109-15ES is used for extended-reach deburring, grinding, contouring, cleaning, and finishing with compatible shank-mounted abrasive accessories. Its longer straight housing helps when the work area is recessed or difficult to reach with a standard die grinder.
• Q: How is the CP3109-15ES different from the standard CP3109-15?
  A: Both models run at 15,000 RPM, but the CP3109-15ES uses an extended straight housing with a longer overall length. Choose the ES version when you need added reach into castings, weldments, fixtures, and deeper work areas.
• Q: What collet size does this grinder use?
  A: SKU 6151701550 is listed with a 1/4" / 6.35 mm collet capacity and an Erickson Series 200 type collet system. Match the accessory shank to the installed collet before use.
• Q: What air supply does the CP3109-15ES require?
  A: Chicago Pneumatic lists 31 CFM / 15 l/s air consumption at load, a 3/8" BSP air inlet, and 90 PSI / 6.3 bar working pressure. Use clean, regulated air through the recommended minimum hose diameter to help maintain grinder performance.
• Q: Can this grinder use any carbide burr, mounted point, or abrasive wheel?
  A: No. The accessory must match the installed collet size and must have a maximum operating speed equal to or higher than the grinder's 15,000 RPM free speed. Always confirm shank size, accessory type, workpiece material, and the accessory manufacturer's safety rating before use.

Looking for more information about Chicago Pneumatic Straight Die Grinder? Click here to view the Catalog.

For help selecting the correct Chicago Pneumatic Straight Die Grinders for your assembly application, call (800) 608-5210 or email info@intlairtool.com