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Aluminium straight die grinder with extended shaft and cone wheel adaptor

Chicago Pneumatic

Chicago Pneumatic CP3451-18SEC Extended Die Grinder 18000 RPM 3/8 in NPT Female Air

SKU CH-K28J-GYNKG MPN CP3451-18SEC

Extended straight die grinder runs at 18,000 RPM with a 1 hp air motor and 1/4 in collet for heavy-duty material removal

  • Product typeGrinders
  • Product weight4.44
  • Main materialAluminum
  • 1 hp motor drives 18,000 RPM for fast material removal
  • 3/8 in NPT female air inlet fits standard shop lines
  • 1/4 in collet accepts common carbide burrs and mounted wheels
  • 44 lb aluminum body reduces fatigue during extended use
  • Straight orientation with top switch allows precise one-hand control

Extended Die Grinder for Heavy-Duty Use

The Chicago Pneumatic CP3451-18SEC is a straight die grinder built for heavy-duty material removal. It runs on compressed air and reaches a maximum speed of 18000 RPM. The aluminum body weighs 4.44 units and uses a 1/4 in collet for accessory mounting. A cone wheel adaptor and wrenches are included with the bare tool.

Suited for High-Speed Grinding, Not Low-Speed Torque

This grinder suits operators who need high rotational speed for precision deburring, porting or finishing work. The 1 hp motor delivers consistent power for extended sessions. It is not for users who require high torque at low RPM or a tool that operates without a compressed-air supply and 3/8 in NPT female connection.

3/8 in NPT Female Air Inlet Decides Compatibility

The single specification that determines fit is the 3/8 in NPT female air inlet. Your air hose and supply system must match this exact thread type and gender to operate the tool. If your supply uses a different thread standard or connection size, the grinder cannot be connected without additional adapters not supplied in the kit.

How it compares

Measured against everything we stock in Sanders, Rotary & Demolition Tools, at today’s prices. Recalculated every night.

Price $592.99
Pricier than about 95% of the 477 comparable items (median $21.99).

Specifications

Product
Brand nameChicago Pneumatic
Model nameCP3451-18SEC
Product typeGrinders
Size & build
Main materialAluminum

Questions about this item

How much air does the CP3451-18SEC consume when running continuously at 18000 RPM?

The tool is rated at 1 hp, so expect a steady air demand that matches a 1 hp pneumatic motor at full speed.

What size air hose and fittings must I already have to connect the 3/8 in NPT female inlet?

You need a 3/8 in NPT male fitting on your hose or quick-coupler to thread directly into the grinder's air inlet.

Will the 1/4 in collet on this grinder accept the same accessories I use on my older 1/4 in die grinders?

Yes, the 1/4 in collet is a standard size, so existing 1/4 in shank burrs, mounted points and cone wheels will fit without adapters.

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