Thunderbolt drill bits are designed for use with cordless and other portable drills. The bits are engineered with a thicker web and unique flute form which allows for quicker penetration and improved drilling times. With increased strength built into the web, the Thunderbolt bit can perform many operations where conventional bits break. The open flute form ejects chips more efficiently when drilling deep holes which helps prevent lock-ups at breakthrough. Black and bronze high speed steel provides heat resistance, durability and increases bit life.
Customer Reviews:
Avg. Customer Rating: 4.5 / 5.0
Perfect Compact Drill Set:
You can't go wrong on this drillset ... especially if you find it at the promotional price. Once I used one of the bits, I realized that this was a bargain! Craig
Great drill set:
This is a great drill set. My husband loves the one I gave him. It was a great price for a quality set.
Decent bits:
I wont say these are the best drill bits in the world, but they are good and get the job done. I have found another brand of bits that are perhaps a little better and somewhat cheaper, but this set makes a nice addition to my collection, and the carry case is well made and offers great protection to the bits and easy bit storage.
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