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DYNABRADE 49425 right-angle die grinder, silver metal body, 1/4 in NPT female air inlet

DYNABRADE

DYNABRADE 49425 Right Angle Die Grinder 1/4 in NPT Female Air Inlet

SKU CH-NNT9-C1Q7M

Heavy-duty right-angle die grinder delivers 0.4 hp at 4,500 RPM with 1/4 in and 6 mm collets, safety-lock throttle and anti-restart technology

  • Right-angle design reaches tight workspaces
  • 4 hp motor delivers heavy-duty grinding power
  • 4,500 RPM max speed removes material quickly
  • Includes 1/4 in and 6 mm collet inserts
  • Safety-lock throttle lever prevents accidental start

Right Angle Die Grinder 49425

The Dynabrade 49425 is a right-angle die grinder built for heavy-duty material removal in tight spaces. It runs on compressed air and accepts both 1/4-inch and 6 mm collets for a range of carbide burs and mounted points. The safety-lock throttle lever and anti-restart function reduce accidental start-up risk during tool changes.

Professional metalworkers and weld prep technicians

This grinder suits professionals who need a compact right-angle tool for deburring, porting and finishing in confined areas. It is not for operators who require a straight-body grinder for open-surface work or a higher-horsepower motor for sustained stock removal on large castings. Buyers without a regulated compressed-air supply should also consider electric alternatives.

0.4 hp at 4,500 RPM

The 0.4 hp motor delivers a free speed of 4,500 RPM, which determines material removal rate and bur life. Match the speed and power to the abrasive manufacturer’s maximum operating speed to avoid overspeed failure. The 1/4-inch NPT female air inlet connects the tool to the shop supply.

Highlights

  • Right-angle design reaches tight workspaces
  • 4 hp motor delivers heavy-duty grinding power
  • 4,500 RPM max speed removes material quickly
  • Includes 1/4 in and 6 mm collet inserts
  • Safety-lock throttle lever prevents accidental start

Specifications

BrandDYNABRADE

Questions about this item

Will the 1/4 in NPT female air inlet on the 49425 connect to my existing shop airline without an adapter?

The grinder has a 1/4 in NPT female air inlet, so it will accept a standard 1/4 in NPT male fitting from most shop airlines directly.

How can I confirm the 49425 is running at its rated 4,500 RPM after I hook it up?

With the safety-lock throttle lever engaged and the tool under no load, the motor should spin freely at the rated 4,500 RPM; a handheld tachometer on the collet will verify the exact speed.

Does the 49425 ship with both the 1/4 in and 6 mm collet inserts, or do I need to buy one separately?

The box includes the bare tool plus both a 1/4 in collet insert and a 6 mm collet insert, so no extra collets are required to start work.

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