BINOTA 15PCS 30-100 mm (1-3/16" to 3-15/16") Concrete Hole Saw Kit | Tungsten carbide drill set; SDS-Plus & SDS-Max shanks; cross pilot bit; dry drills concrete, brick, block

16-PIECE COMPLETE KIT. Includes 5 concrete hole saws (30mm/1-3/16", 40mm/1-9/16", 65mm/2-9/16", 80mm/3-1/8", 100mm/3-15/16"), 1x SDS-Plus shank (300mm), 1x SDS-Max shank (300mm), 3x center drill bits, 5x spring washers, and 1x blow-molded carrying case. Covers most professional concrete drilling needs

TUNGSTEN CARBIDE & DRY DRILLING. Made of high-grade tungsten carbide for exceptional hardness and wear resistance. No water cooling required – designed for efficient dry drilling into concrete, brick, stone, cement, and masonry. The self-tightening thread design keeps the center drill securely in place, reducing vibration and ensuring stable operation

ENHANCED STABILITY & EASY BIT CHANGES: Features cross-shaped alloy teeth on the center drill for improved concentricity and precise positioning. The optimized connecting rod includes a built-in wrench slot, allowing quick and easy detachment of the hole saw and center drill using a standard wrench – no more struggling with stuck bits

WIDE COMPATIBILITY & VERSATILE USE. Works with all SDS-Plus rotary hammers from major brands. Perfect for drilling holes for socket boxes, air conditioners, water pipes, drain lines, HVAC vents, and electrical conduit through concrete, brick, cinder block, adobe, and stone

PRO TIPS & WARRANTY. Designed for dry drilling – water is not required. For extended heavy use on hard materials, occasional water cooling can reduce heat and extend bit life. Start at low speed to prevent tooth damage. Avoid drilling into rebar or marble. For professionals and serious DIYers. Contact us with any questions – we are committed to your satisfaction