Here’s what Guhring says about their spot drills:
“NC spot drills are high precision drills designed specifically for creating an accurate hole location for a secondary drilling operation. NC spot drills due not have body clearance and are not designed to drill greater than the depth of the point angle. The 90º and 120º spot drills are primarily used to create an initial spot for 118º and 135º secondary drills respectively. The 142º point NC Spot drill, series 546, is designed to help center carbide drills with an angle of 140º.”
@Winters636 reported some impressive results with one of their 2mm drilling endmills.
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