15 Piece HSS Black Oxide Stub (Screw Machine) Split Point Drill Bit Set, D/ASP, 1/16" - 1/2" BoltsandNuts.com Size 1-1/2"-8

Size 1-1/2"-8

They may also be used to thread mild steels

Part Number: 56F400HCSL9Y

Part Number DWTSR112-131632

Metric - Stainless A2-70 Flat Head Socket Cap Screws

15 Piece HSS Black Oxide Stub (Screw Machine) Split Point Drill Bit Set, D/ASP, 1/16" - 1/2" BoltsandNuts.com Size 1-1/2"-8Product Description Screw machine drills (also know as stub or stubby drills) are manufactured to National Aerospace Standard 907. The 135 degree split point is self centering and reduces thrust. Ideal for portable or machine drilling. Short, rugged construction performs well in a broad range of materials. Screw machine drills are popular in the automotive and construction industries. They are often used in screw machine setup where spindle clearance