Clean masonry holes depend as much on slurry escape as on diamond grit. Clearance and water ports decide both.
Core drilling fails quietly when slurry packs the kerf. Protec Tools designs barrel clearance and water delivery for the diameters contractors actually run on brick, block and stone.
Why Clearance Matters
Too little clearance traps swarf, heats the crown and ovalizes the hole. Too much clearance wobbles thin bits. Match barrel design to depth and material abrasiveness.
Water Ports and Wet Discipline
Water cools diamonds and flushes fines. Blocked ports act like a dry cut. Check ports before each hole and never starve a deep core.
- Start with a guide drill or jig on smooth faces.
- Pulse feed on rebar encounters—do not lever the rig.
- Extract the plug before it locks in the barrel.
- Inspect segments for undercutting after reinforced hits.
OEM buyers should specify hole diameter tolerance and typical reinforcement when ordering from Protec Tools.
Related Protec Tools products: Laser welded diamond blade, Sintered diamond blade, Diamond core drill bit, Diamond grinding wheel
