It checks today's price at every store, compares the alternatives and answers in about a minute.
A Milwaukee Thunderbolt drill bit set in black oxide, aimed at drill-driver users who cut metal, wood and plastic. The bits use a 135-degree split point that bites without a pilot hole, parabolic flutes for chip clearance, and a thicker core for stiffness. The 3-flat Secure-Grip shank stops slipping in a 3/8-inch chuck, and the set adds six insert driver bits. Against generic high-speed-steel sets, the split point and anti-slip shank are the real advantages; the black oxide coating is a general-purpose finish, not the cobalt or titanium grade that holds up to hard stainless or repeated heavy metal work.
In stock
Also available at
Store links may earn us a commission.
Lowest price we've seen: $19.99 on Nov 13 at Theisen's. Tracked across 14 stores since Nov 13.
Rated 4.4 out of 5 from 114 ratings. Owners like the split point and the no-slip shank for everyday drilling, while a minority complain that some bits wear or break sooner than expected.
This Milwaukee Thunderbolt set is made of black oxide-finished drill bits. It is used for drilling metal, wood and plastics.
The bits have a 135° split point tip and a parabolic flute form. The core is thicker, and the 3-flat Secure-Grip shank is designed to hold in the chuck.
The set works with drill drivers that have a 3/8 in chuck. It includes 6 insert driver bits.
