Our Premium Core Bit line is just what the name implies; a premium bit with premium quality industrial diamond concentration. The Premium line of core bits require a water supply for operation. The water aids in removing the slurry and cooling the blade during coring. The coring depth is 14”. We also offer the option of a 6” bit extension. The Premium core bit line is designed with a 7.5mm general purpose segment which combines both accuracy and speed of cut when drilling concrete, block, masonry, natural stone and hardscape aggregates.

Core bit dimensions are listed in the format:

Diameter x Drilling Length x Thread Connection

For Example:

2” x 14” x 1-1/4”- 7

• 2” – The nominal diameter of the hole the core bit is designed to drill
• 14” – the usable drilling length (max drilling depth of the bit before an extension is required).
• 1-1/4” -7 – The connection that attaches the core bit to the drill. This must match the spindle on your core drill or the adapter being used.

Smaller diameter core bits (typically under 2” in diameter) can have a 5/8” - 11 threaded connection.