Diamond Core Bits

SELECT DRILL

Confirm documented spindle interface (e.g. 1-1/4"-7 UNC, 5/8"-11 UNC, or direct collet) and maximum rated diameter in handheld or stand mode.

MATCH CONNECTION

Use documented direct connection or supported adapter path. Adapters change mechanical thread only, they do not alter drill capacity or wet or dry drilling limits.

CHECK BIT REQUIREMENTS

Confirm diameter, material, method and working depth meet jobsite requirements. Verify that barrel length exceeds slab or wall thickness.

DIAMETER

Match bit diameter to penetration needs: 1/2", 2" for plumbing and anchor bolts, 3", 4" for soil stacks and conduit, and 5", 8" for HVAC ducting.

MATERIAL

Select segment matrix bond hardness inversely to aggregate: soft bond segments for hard aggregate and rebar; hard bond for abrasive block and asphalt.

METHOD

Select wet drilling with slurry management for reinforced concrete and deep coring. Choose dry drilling with HEPA dust shroud for finished indoor walls.

CONNECTION

Ensure bit thread matches drill spindle (standard 1-1/4"-7 UNC for heavy drills, 5/8"-11 UNC for light utility drills, or verified manufacturer adapter).

WORKING LENGTH

Confirm usable barrel length exceeds total structure thickness. Standard commercial bits measure 14" to 16" usable depth; deep coring requires extensions.

RPM & GEAR

Match peripheral bit surface speed (recommended 800-1,200 SFM) to machine gear ratios. Larger bits require lower gearbox speeds to prevent segment glazing.

Wet Diamond Core Bits

• Requires continuous pressurized water feed to flush slurry and cool diamond segments.
• Delivers fastest penetration rates and longest segment lifespan in cured reinforced concrete.
• Requires slurry collection rings and industrial vacuum extraction when coring indoors.

Dry Diamond Core Bits

• Engineered with high-temperature laser-welded segments and corrugated barrel cooling slots.
• Must be paired with a continuous airflow HEPA dust extraction shroud for OSHA silica compliance.
• Ideal for finished interiors, proximity to live electrical gear, and masonry/cinder block.