#2 HSS Black & Gold Step Drill Bit (3/16" - 1/2" by 1/16") - High Performance & Durable Cutting Tool | Drill America Burs & Rotary Files High speed steel spiral flute

High speed steel spiral flute Chucking Reamers are designed for accurate reaming and are for use in most materials using all types of equipment including screw machines

Made from high-speed steel for enhanced heat resistance and durability

12" and 14" slightly in thickness for about one-third of length

Choose the Drill America - 5/8 x 12 SDS-Plus Hammer Bit for unmatched reliability and performance

#2 HSS Black & Gold Step Drill Bit (3/16" - 1/2" by 1/16") - High Performance & Durable Cutting Tool | Drill America Burs & Rotary Files High speed steel spiral fluteStep 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 are Black and gold surface treated. Product