Carbide Whirley Bits

Whirley Bits, also known as concrete doweling drill bits, are used mainly in highway expansion construction. These bits utilize hollow steel so air flow can continuously keep the drill hole clear as well as a carbide tip to handle the hardest material. Champion offers hole sizes from 5/8" to 1-1/2" in diameter with lengths available to 48". Champion Chisel Whirley Bits are proudly Made in the U.S.A.