Lenox® - Vari-Bit® Step Drill, 3/16 to 7/8 in, Max Hole Diameter, 12 Steps
Lenox® - Step Drill, 1/4 to 3/4 in, Max Hole Diameter, 9 Steps
Lenox® - Vari-Bit® Step Drill Bit, 1/2 to 1 in, Max Hole Diameter, 9 Steps
Lenox® - Step Drill, 7/8 to 1-3/8 in, Max Hole Diameter, 5 Steps
Lenox® - Vari-Bit® Step Drill Bit, 1/8 to 1/2 in, Max Hole Diameter, 13 Steps
Lenox® - Vari-Bit® Step Drill, 7/8 to 1-1/8 in, Max Hole Diameter, 2 Steps
Lenox® - Vari-Bit® Step Drill, 7/8 to 7/8 in, Max Hole Diameter
Lasco - Harcraft H&C Stem Unit
PASCO - Nipple and Screw Extractor, 1/2 in, Extractor, 17/32 in, Drill, For Screw 7/8 to 1-1/8 in
Lasco - Am Std H&C Stem Unit