Drill bit, Hammer and percussion masonry, Improved carbide tip provides up to 2 times longer life, Innovative tip configuration reduces walking for improved accuracy, Optimum grade of carbide provides maximum durability, Unique flute design efficiently removes dust and reduces bit binding, 25"" diameter, 25"" shank, 2"" drilling depth, Length: 2, 43, Width: 7, 93, Height: 1, 31 SKU: JNSN11231