13 piece Masonry Drill Bit set with tungsten tip. Good cutting speed and durability. This is a high-quality Drill Set for use with percussion drills on brick, block, stone or light concrete. The tungsten carbide tip is manufactured to DIN8039 standard. FEATURES:Precision ground drill bits perfect for Masonry tasks. Covers every common fixing size. This set is ideal for field use. Suited to Brick, Block, Stone, Light Concrete. 13 - Masonry Drill Bits, Size: 4, 5, 5.5(x3), 6(x2), 6.5(x2), 7(x2), 8(x2)mm. Supplied in a strong plastic box.