For excellent quality, choose The Dewalt DT6692 Extreme Masonry Drill Bit The Dewalt DT6692 is an Extreme Masonry Drill Bit That offers excellent quality for all types of masonry work. Features: A unique tip design provides an efficient drilling action and reduced walking for greater accuracy Optimised milled flute offers fast drilling and the special copper brazing withstands high temperatures  Last up to 2 times longer and deliver up to 50% more holes per charge on a cordless drill than a standard masonry bit Specification: Width: 10mm Height: 10mm Weight: 0.26kg Length: 110mm