The Core Bore Heavy Duty Orange Core Bit is an excellent dry diamond core bit. The Heavy Duty Orange uses very high quality diamonds for longer coring life. It is meant to be used on block and soft brick. Do not use this on concrete or rebar.
Core travel is 9", thread size is 5/8"-11.
Use wet or dry.
Dry Core Bits can be used with hammer drills provided you have: 1) the correct adapter and 2) a setting on your drill for spin only (the hammer action will blow the diamonds right off the bit, making it useless).