The Milwaukee 48-89-2772 1/4 in. Thunderbolt Black Oxide Drill Bit is recommended for use with portable drills. This drill bit features a parabolic flute form to clear chips and debris to keep the bit cool, and the thick core offers protection against side-load breakage. The black oxide construction provides durability, and this drill bit is excellent for drilling on curved surfaces.
- Thunderbolt web, provides longer life and faster driller times
- Parabolic flute, clears chips faster
- Black oxide construction for durability
- 135-degree split point, precision start no walking
Monica Effertz (verified owner) –
This bit worked very well as a pilot while assembling a few large timber structures. Highly recommend this product.
Suzanne Thompson (verified owner) –
The drill bit worked well for the application I needed it for, drilling through fence posts to install a gate hinge.
Sherman Sanford (verified owner) –
Another good solid tool from Milwaukee, and The Home Depot. The 12 inch length is perfect for longer drilling in stock to achieve completion of the repair. For instance repairing a door knob and setting the door latch. Thanks Milwaukee and The Home Depot
Maximillian Bogan (verified owner) –
This item does not stand out except for the unusual length, making this a specialty-use tool.
Adriana Bartell (verified owner) –
good drill for my project which involved drilling 6″ down the center of a 1″ dowel
Kylie Schowalter (verified owner) –
Worked perfect on setting 6″ and 8″ pilot holes for lags bolts
Eduardo Kunde (verified owner) –
Works perfect.
Cynthia Grimes (verified owner) –
I’m very pleased
Josianne Wiegand (verified owner) –
Good value for the money. Bit did an excellent job. Would buy again.
Jevon Brekke (verified owner) –
The quality I would expect from Milwaukee. Worked perfectly.
Jarred Hane (verified owner) –
On time and as advertised
Kelsie Bogisich (verified owner) –
Super sharp, bore right through the timbers without any problems. Never once did I have to reverse the bit to unclog the hole being drilled.
Dylan Volkman (verified owner) –
I purchased to use during construction of a log home. I am half way up with my logs and so far this bit has done a very good job.