Wet core drill bits with high diamond concentration and quality, for a faster coring and longer life. Perfect for drilling concrete, concrete with light steel reinforcement or other hard masonry. 10mm segment height with 14" drilling depth. 1-1/4"-7 threaded arbor, use wet only with handheld core drills or core drill rigs. Not designed for wire mesh! Use on rotary mode only! Specifications: MULTIPURPOSE - designed to drill high PSI concrete, concrete with medium steel reinforcement or other hard masonry HEAVY DUTY - embedded diamond concentration guarantees longer core life and efficient drilling HIGH PERFORMANCE - embedded diamond concentration allows bit to drill 50% faster and last 35% longer than the general purpose counterparts ARBOR SIZE - 1-1/4"-7 threaded arbor DRILLING DEPTH - 14" drilling depth WET ONLY - recommended to use with handheld core drills or dedicated core drill rigs (rotary mode only) ROTARY MODE ONLY - please only use rotary mode with core bits, not designed for wire mesh drilling