About this item

• ¡¼High Quality¡½The step drill bits are made of classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, wood board, copper, stainless steel and many other types of sheet metal
• ¡¼Two-Flute Design¡½Two-flute design makes it easier for cutting, provides smoother, accurate, faster cutting, it's really good tools for us
• ¡¼1/4' Hex Shank¡½Quick change 1/4' (6.35mm) hex shank, which can be easily fit into power driver, drill and press drill
• ¡¼Wide Application¡½Our step drill bit can process different diameter holes. Ideal for drilling holes in sheet metal, copper, wood, aluminum and plastic. Suitable for home DIY and general use
• ¡¼Package Content¡½The cone drill bits set includes 3 common sizes for versatility. Bit #1 (6 steps): 3/16', 1/4', 5/16', 3/8', 7/16', 1/2'; Bit #2 (13 steps): 1/8', 5/32', 3/16', 7/32', 1/4', 9/32', 5/16', 11/32', 3/8', 13/32', 7/16', 15/32', 1/2'; Bit #3 (9 steps): 1/4', 5/16', 3/8', 7/16', 1/2', 9/16', 5/8', 11/16', 3/4'