#4 HSS Black & Gold Step Drill Bit (3/16" - 7/8" by 1/16") - High Performance & Durable Cutting Tool | Drill America Burs & Rotary Files Choose the Drill America -

Choose the Drill America - 1-5/8-14 UNS HSS Taper Tap for unmatched reliability and performance

Extra-Large Wipes: Generous 10" x 12" size provides ample coverage

Size: SL-6NF

Overall Length: 3-5/8"

Size: SA-3

#4 HSS Black & Gold Step Drill Bit (3/16" - 7/8" by 1/16") - High Performance & Durable Cutting Tool | Drill America Burs & Rotary Files Choose the Drill America -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 are Black and gold surface treated. Product