#5 HSS Step Drill Bit (1/4" - 1-3/8" by 1/8") BoltsandNuts.com Slotted Hex Washer Head Diamond

Slotted Hex Washer Head Diamond Point Concrete Screws

Metric A2-70 Stainless Steel Flat Socket Screws

Part Number: 75F400HCSSS

Part Number: EZ-EZ-453-12

Part Number D/ASTCOW

#5 HSS Step Drill Bit (1/4" - 1-3/8" by 1/8") BoltsandNuts.com Slotted Hex Washer Head DiamondProduct 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. Brand