Versatile dry/wet multipurpose core bits with high diamond concentration and soft bonding for a wide range of applications. Dry drilling is ideal for brick, block and natural stones with Moh's hardness <4. Wet drilling is ideal for concrete (non-reinforced), and natural stones with Moh's hardness <7. 10 mm segment height with a 6" drilling depth and 5/8"-11 threaded arbor. Recommended to use with handheld drills (rotary mode only) and variable speed grinders.Hole diameter is 4"
DRY DRILLING - designed for brick, block, pavers or natural stones with Moh's hardness below 4
WET DRILLING - designed for concrete (non-reinforced) or natural stones with Moh's hardness below 7