The Milwaukee 21-piece Thunderbolt Black Oxide Drill Bit Set offers convenience and heavy-duty performance on the job site. These drill bits are designed for extreme durability and long-life. The Thunderbolt web features a thicker core to provide ultimate strength and protect against side-load breakage. Corrosion resistant coating provides lubricity and resists the corrosion of the tip. A specially designed parabolic flute form clears chips fast, while the 3-Flat Secure-Grip shank holds the drill bit firmly in the drill chuck. The 135° split point tip delivers a precision start and prevents walking for fast, accurate holes. The Milwaukee Thunderbolt Black Oxide bits are effective for drilling on curved surfaces and require less effort to drill through metal, wood and PVC. The set comes in a durable carry case and includes bit sizes two 1/16 in., two 5/64 in., 3/32 in., 7/64 in., two 1/8 in., 9/64 in., 5/32 in., 11/64 in., two 3/16 in., 13/64 in., 7/32 in., 15/64 in., two 1/4 in., 5/16 in., 3/8 in. and 1/2 in.
- Extreme durability: a thicker web provides strength and long-life
- Fast, accurate drilling: 135° split-point tip starts on contact to prevent walking, while the parabolic flute clears chips fast
- Reduced slipping: 3-flat secure-grip shank holds the bit firmly in the drill chuck
- Corrosion resistance: black oxide coating provides lubricity and resists corrosion of the bit
- Flexibility with projects: includes 21 twist drill bits in jobber length bit sizes for a variety of applications
- Various sizes: bit sizes range from 1/16 in. to 1/2 in.
- Reduced shank diameter for use in 3/8 in. chucks
- Includes: two 1/16 in., two 5/64 in., 3/32 in., 7/64 in., two 1/8 in., 9/64 in., 5/32 in., 11/64 in., two 3/16 in., 13/64 in., 7/32 in., 15/64 in., two 1/4 in., 5/16 in., 3/8 in. and 1/2 in.
Gaylord Goldner (verified owner) –
I am single and needed tools for myself! I love the convenience of having tools to complete chores around the house
Wellington Huels (verified owner) –
I have only used the bigger sizes a couple of times but they seem to hold up to the UHMW plastic that I am putting holes in.
Dane Nitzsche (verified owner) –
I needed new drill bits & wanted ones that would last. Price was right and the bits are sharp.
Shanel Barrows (verified owner) –
I use the drill bits on wood and metal and am very pleased with the Milwaukee brand bits. They’re strong and so far have kept sharp. I use the drill bits in my hand held electric drills around the house and the black oxide bits work just fine for me.