I do love my mg725 just curious what others are comparable yet lighter. Nitro Kat's any good?
The mg725 is dependable and tightens and removes fasterners without any problems. I have 100A% faith in it.
My first Impact wrench was a Mac Tools AW434M used on Ebay. It is a magnificent wrench From the weight and build to the sweet sound. Also the Proven Bullet Proof Twin Hammer Ingersoll Rand design. But when I could not remove a crank pulley bolt from a 1998 Toyota Tacoma 4 cylinder engine it was time for a new one.
The replacement is a Mac Tools 1/2" Composite Impact Wrench Model Number AW480Q, which is a Nitrocat impact wrench. I have not gotten use to the feel and it doesn't seem as powerful as the AW434M. Which can be attributed to the noise and the twin hammer versus Twin clutch design.
Personally, the Nitrocat did not feel as powerful as a Twin Hammer Impact. This is my observation, not based on specific data to back up this claim, however I think this is due to the feel of the Dual Clutch vs. Twin Hammer operation. Also the Mac Dealer said that it is more sensitive to water vapors in the compressed air line than the AW434M. But the AW434M is a bullet proof IR design so it is hard to compare sensitivity. A positive trait for the Nitrocat is the quiet operation.
Based on the feel and sensitivity to water vapors, I sold the nearly new wrench on ebay with the original packing with the warranty paperwork.
The replacement impact wrench is a Snap On MG725 which is a twin hammer design and which I like very much.
The 2135TiMAX, is a outstanding impact wrench with a lot of happy owners, it has more positive reports/use than the Nitrocat owners report.
I have tested the three Impact wrenches on a Crankshaft Bolt removal and all three failed to remove the crank bolt. ALSO THE REGULATOR ON MY AIR COMPRESSOR WAS CRANKED TO THE MAXIMUM OUTPUT AT 150PSI WITH A 3/8 FLEXZILLA HOSE USING THE RED LEGACY COUPLERS. The trick is to lubricate the crank bolt with a penetrant oil and let soak for an hour before trying to remove the bolt. (NOTE: THESE CRANK BOLTS HAVE NEVER BEEN REMOVED FROM THE VEHICLE AND ARE OVER 6 YEARS IN SERVICE.)
Not sure if a more powerful impact gun/wrench will remove a crank bolt without lubrication.
OR a HVLP fittings on my air lines would improve the performance.