A quality sintered, laser-welded wet diamond core bit delivers 30–150 meters (100–500 ft) of total drilling in plain structural concrete and 10–40 meters (30–130 ft) in heavy rebar. Convert that to "holes" and you'll see anything from 20 to 250+ depending on your diameter and depth.
Learn the real difference between HSS and SDS drill bits. HSS is a high-speed steel material ideal for general-purpose metal and wood drilling, while SDS refers to the shank system used for positioning and rotary core drilling in concrete.
Dry Core Drill Bit with SDS Core Bit: The Ultimate Precision Tool for HVAC, Plumbing, and Highway EngineeringWhen Drilling Efficiency Determines Project ProfitabilityIn a shopping mall air conditioning retrofit project in Novosibirsk, Russia, contractors faced significant delays—23% longer than plan
Do diamond blades get dull? Yes—but not in the same way as traditional toothed steel blades. Diamond blades lose effectiveness when the industrial diamonds wear away or the bond "glazes" over, hiding sharp diamonds under a smooth surface. That's why a blade can look fine yet cut slowly, burn, chip, or vibrate. This guide brings together practical field checks and fixes to help you diagnose dullness quickly, decide whether to revive or replace, and prevent premature wear.
