#4 HSS Quick Change Hex Shank Step Drill Bit (3/16" - 7/8" by 1/16") BoltsandNuts.com Part Number: BIT-DWDRSD1-7/32

Part Number: BIT-DWDRSD1-7/32

Part Number: Assortment Kit #123236 Pieces

Part Number DWDTSCO1-1/4

Part Number DMS73-4012

Tap Drill Size #12

#4 HSS Quick Change Hex Shank Step Drill Bit (3/16" - 7/8" by 1/16") BoltsandNuts.com Part Number: BIT-DWDRSD1-7/32Product Description Step drills have single radial concave flutes to create a perfectly round hole in metal, plastic wood and other thin materials without center punching. Constructed of industrial grade high speed molybdenum steel, heat treated and temperature for long life. Self starting tip. No center punching needed. Automatically deburrs top side of hole. Ideal for steel, copper, aluminum and other thin materials. They have a bright finish with a