Only from Center Rock:
Our Patented Bit Retention System

Broken bits are a fact of life in the drilling business. Fishing or retrieving them with standard fishing/retrieval bits to save the hole often fails, while adding time and cost to the job. Our patented retention system helps eliminate all this.

Each specially designed retention bit has a machined retention shoulder. The bit functions in the same way as a conventional bit in the drilling mode or blow/flushing mode. However, if the bit shanks in any portion above the head of the bit--the most common section for breakage to occur--the head of the bit is held in the retention system and not lost down the hole. This effectively eliminates the need for fishing and the associated waste of time and money. All you do is trip out of the hole, break loose the chuck from the hammer, and remove the broken shank and head of the bit from the system. Replace it with another CR patented retainer bit and you’re ready to go down the hole and start drilling again.

Different shank sizes and shank styles and head sizes are available with our system. While we prefer you use our hammers, we can custom fit our CR patented bit retention system on other brands of hammers.