W Cobalt Split Point Stub Drill Bit Quantity:1 Overall Dimensions: 4-5/16" x 4-1/2"

Overall Dimensions: 4-5/16" x 4-1/2"

Part Number: 37C350PDEAZY

Diameter:20"

Case Hardened Serrated Hex Flange & Large Flange Lock Nuts Zinc

Part Number: 100C250HSBA325PL/PT

W Cobalt Split Point Stub Drill Bit Quantity:1 Overall Dimensions: 4-5/16" x 4-1/2"Product Description Cobalt screw machine drills (also know as stub or stubby drills) are manufactured to 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 in the iron and steel families. Screw machine drills are popular in the automotive and construction industries. They are often used in screw machine