Diamond Core Bit Features

New Blue Boar™ dry cutting diamond core bits are very effective for drilling clean, uniform holes in brick, concrete block, and masonry/stone. They feature laser-welded technology for greater durability, and utilize bar-slot cooling to promote greater cutting efficiency, reliability, and safety.

Contractor Grade Core Bit Features

Dry core bits bore holes much faster than line drilling with conventional carbide tipped percussion bits, while providing a smoother finish, and little or no patching.

Blue Boar™ dry cutting diamond core bits utilize thin-wall tubing for lighter weight and easier control. All bits have superior laser-welded hard diamond segments for durability, a 10" cutting depth, and standard 5/8”-11 threads for direct mounting.

The barrels are vented for heat relief to keep the bits running cooler and provide for faster removal of the cuttings. 

The Contractor series of core bits offers excellent quality at an affordable price.

· Standard Length: 10" drilling depth, 10.5" overall

· Drill Adapter: 5/8"-11 thread

	Dry Diamond Diameter		Max/Min RPM*
	1" - 1 1/2"	(25mm - 38mm)	6000 - 2300
	1 3/4"	(44mm)	5000 - 1600
	2" - 2 1/4"	(51mm-57mm)	5000 - 1200
	2 1/2"	(64mm)	5000 - 800
	3" - 5"	(76mm - 127mm)	5000 -700
	6"	(152mm)	5000 - 600

With their 5/8”-11 thread mount the Blue Boar core bits can be used if desired with self-centering dry bits like the one shown below. After the core bit cut has been started sufficiently the starter bit can be quickly removed by loosening the set screw in the adapter.

Hole Pro® guarantees all Blue Boar bits against segment loss when used properly on the right material application. Dry core bits are not designed for drilling reinforced concrete or other hard, dense materials such as clay brick.