The Neiko 10169A Step Drill Bit and Center Punch set comes with the next pieces: 1/4-inch shank 6-step drill bit: 3/16-inch to at least one/2-inch in 1/16-inch increments1/4-inch shank 13-step drill bit: 1/8-inch to at least one/2-inch in 1/32-inch increments3/8-inch shank 10-step drill bit: 1/4-inch to at least one-3/8-inch increments3/8-inch shank 12-step drill bit: 3/16-inch to 7/8-inch in 1/16-inch increments One automatic center punch
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Classic high speed steel with titanium coating for drilling holes in plastic, aluminum, copper, stainless steel, and plenty of other sheet metal types
Two-flute design deburrs all through drilling, clearing chips faster and allowing particles to escape for cleaner operation
Each and every step drill bit includes a tri-flatted shank for a protected fit into power tool chucks, getting rid of slip
Automatic center punch creates spring-loaded high-have an effect on strike against surfaces; red cap adjusts force
Set includes (2) 1/4-inch shank step drill bits, (2) 3/8-inch shank step drill bits, and (1) automatic center punch