D131 - Panel Drills Single Ended Silver Bullet 2 Pack Sutton Tools Silver Bullet Panel Drills are developed to drill holes for rivets in flat and curved panels and used in sheet metal fabrication. 135 self-centring point minimises wandering when starting and ideal for thin materials Flute length designed for shallow hole drilling no deeper than 1.25mm x diameter Made from M2 High Speed Steel (HSS) offering the best combination of strength, heat & wear resistance Bright finish for general purpose applications, non-ferrous metals & plastics Diameter #11 Length 54mm Flute Length 19mm Shank 4.85mm