6PC masonry Drill Bit Set Drill Bits in the Set: - 3mm (x2) - 4mm (x2) - 5mm - 6mm - 7mm - 8mm - 9mm - 10mm - 11mm - 12mm - 13mm - 14mm - 15mm - 16mm Application: The Drill Bits in the Set are used to drill into masonry, thanks to the uniquely designed TCT (tungsten carbide tipped) point.A percussion (hammer action) drill with a 3 jaw chuck is required. PreSet the depth gauge on the drill to achieve the correct depth before drilling into walls. Tip: Have a wall scanner (detector) ready before drilling into walls. Caution: Do not use the Drill Bits in the Set with a rotary hammer. The impact energy will break the conversion chuck. What's in the box 1x Masonry Drill Bit Set 16PC 3 - 16mm in Plastic Case