Short product description:
Diamond Crown AW 1 1/4" 132/430mm drill bit from AWTools is a diamond-tipped coring bit designed for drilling with a 1 1/4" connection. With overall length 430 mm and cutting diameter 132 mm, it is intended for precision coring in hard materials such as concrete, stone and masonry. Suitable for use with compatible rotary or core drilling rigs for creating clean circular holes.