HSS Co5 Multi Step Drill, spiral flute for drilling

HSS Co5 Multi Step Drill, spiral flute for drilling of pilot holes for punches.

Steps (mm)

  8,0        Spot drilling
10,0        Draw stud 9,5 mm (3/8˝) 
11,5        Draw stud 11,1 mm (7/16˝ UNF) 
12,5        Through hole M12 
14,5        Draw stud 13,0 x 11,0 x 105,0 mm 
17,5        Draw stud 16,0 x 14,5 x 115,0 mm 
21,0        Draw stud 19,0 x 14,0 x 120,0 mm
               Draw stud 19,0 mm (3/4˝ UNF)