SDS Plus Quadro Carbide Tip Drill Bits

SDS Plus Quadro Carbide Tip Drill Bits  have unique concave carbide tip design, accelerates drilling speed,reduces wear and supports dust removal. Most rigid joints through copper-silver brazing. Carbide is totally embedded in both sides of the steel body. Super tough helix S4 flute. Fastest and most efficient dust removal. Annealed, shot-peened chrome alloy steel to prevent pre-mature fatigue failures, The drill bit meet JB-T8368.1-1996 Standard ● For professional drilling in concrete and masonry ● Proven tungsten carbide tip geometry with a 130° cutting angle offers fast, easy drilling ● The tip is firmly secured to the drill body with high strength, heat-resistant braze material ● A highly efficient S4-flute helix provides rapid dust removal ● For drilling clean, accurate fixing and clearance holes in brick, block and concrete ● Pre-drill a 150mm deep pilot-hole when using bits of 450mm or longer Drilling materials     Concrete              Hollow brick           Solid brick          Concrete block       Natural stone