Milwaukee 48-20-4415 1-1/2" X 17" X 22" Spline Rotary Hammer Bit
- This is the most common shank
- New 4-Cutter Head design
- Centering point provides precise round holes
- Reduced vibration - New flute design
- New Brazing formula for up to 20% longer life
- (Diameter x Usable Length x Overall Length)
The 48-20-4415 includes:
- 1x Milwaukee 1-1/2'' X 17'' X 22'' Spline Shank Rotary Hammer Bit
UPC - 045242103867
Overall Rating for Milwaukee 48-20-4415 1-1/2" X 17" X 22" Spline Rotary Hammer Bit
Milwaukee Thunderbolt 1-1/2 bit
By BoB from Chicago Area on October 9, 2014
A friend allowed me use his drill, so I purchased this bit to do the job as opposed to renting a more powerful tool for $80/day.
Thunderbolt drilling takes twice as long as the rental unit, but for me, time is not a consideration.