HSS-XE twist drill bits with integrated Weldon shank for simple and accurate drilling in steel and fast tool changing. Removes the need for using a separate drill chuck in a Magnet Drill. Where drilling smaller holes in thick steel has been a long and time-consuming job in the past, fitting the SilverMax Weldon Shank Twist Drills into a Magnet Drill can suddenly make the job far quicker and safer than struggling with a Pistol Drill and jobber drills. Integrated weldon shank Simple & accurate drilling in steel No need for a tool chuck when using a Magnet Drill Fast tool changing Quicker and safer than struggling with a Pistol Drill Fits 19.05mm arbors - use with any standard mag drill1" Cutting length 3/4" Weldon Shank Fits all standard magnet drills