Milwaukee Diamond Bits are designed for fast, efficient coring in a wide variety of concrete, including poured, steel reinforced and pre-stressed, as well as asphalt. Our CONTRACTOR SERIES bits have crowns and diamond segment designed for low cost drilling of smaller numbers of specific sized holes. A 14 inch tube length is standard. The bit incorporates a 1-1/4 - 7 threaded back for attachment to the Diamond Drill Motor. A Thread adapter may be needed to attach this bit to your diamond drill motor. Check drill thread specifications. The Diameter of this bit is 4 inch.

• 4 in. nominal bit size outer diameter.
• 1-1/4 in. - 7 thread size.
• General purpose bit designed specifically for coring smaller numbers of specific size holes.
• Conforms to Diamond Core Drilling Manufacturers Association standards.