Taking its Type UNI and VA solid carbide drills as the base tool, WNT has created a system that allows customers to configure a drill and countersink in a single step-drill, eliminating the need for separate cutters and the tool change that would be required. Machine shops can specify a variety of dimensions, including the diameter of the pilot drill (anywhere from 2.5 to 16 mm), length of pilot, and angle of countersink (between 60 and 120°).
Drills are available in two lengths of 3xD and 5xD based on the original drill size before modification, with a choice of shanks (plain, whistle notch or Weldon), and with or without through-coolant.
With the Type UNI and VA drills being part of WNT’s standard range they are guaranteed to be in stock, so lead-time for step drill modification is short (typically within 19 days of order).
