342SDT5/8 47233824 Bronze 118° 1/2 inch S&D Reduced Shank Drill 5/8 inch Designed with a ½” diameter reduced shank, ideal for portable drilling and drill presses where the maximum chuck capacity is ½”. Self-Centering 118° Split Point for reduced thrust. Steam & Bronze tempered surface treatment provides both abrasion resistance and improved lubricity.