- The product is easy to use
- The product is durable
- The product is manufactured in China
- Thunderbolt drill bits are designed for extreme durability and long life
- Bits features a thicker core than a standard drill bit
- Parabolic flute form clears chips and debris fast, keeps the bit cool
- 135 Split Point tip starts on contact, keeps bit from walking
- 3-flat secure grip shank reduces bit slipping in chuck
Milwaukee Thunderbolt Black Oxide Jobber length drill bits are designed for extreme durability and long life. The Thunderbolt web features a thicker core than a standard drill bit, which provides ultimate strength and protects against side-load breakage. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. A precision start, 135 Split Point tip starts on contact to keep the bit from walking for fast accurate holes. Excellent for drilling on curved surfaces, requires less effort to drill and is highly recommended for use with portable drills. The 3-Flat Secure-Grip shank won't slip in the drill chuck. Reduced shank diameter for use in 3/8-Inch chucks.

By Ali Julia
I used this drill bit set to drill into wood and drywall. The drill bits made the work easy, none broke even when the wood was hard.
My favorite thing about this drill bit is the case. My previous set did not have each bit marked on the set only the drill itself and it was harder to get the right size.
I also like that each side can be pivoted up make it easier to take drills in and out. The set has a nice slide lock. I am attaching a photo to the customer images for reference.
I have used this drill set for over a year on a number of projects and I am quite pleased with it.
Ali Julia review
My favorite thing about this drill bit is the case. My previous set did not have each bit marked on the set only the drill itself and it was harder to get the right size.
I also like that each side can be pivoted up make it easier to take drills in and out. The set has a nice slide lock. I am attaching a photo to the customer images for reference.
I have used this drill set for over a year on a number of projects and I am quite pleased with it.
Ali Julia review

By Anthony S.
the best drill bits used them for years.milwaukee the best.use no other bits.
By Max Perdue
Just as expected.
By Amazon Customer
Goooooood bits!
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