Drill America DWDST7/8 7/8" HSS Heavy Duty Split Point Stub Drill Bit, Qualtech, DWDST7/8 Shop by Category > Air Conditioning>Adapters & Disconnects Chadwick & Trefethen 00561 F

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Drill America DWDST7/8 7/8" HSS Heavy Duty Split Point Stub Drill Bit, Qualtech, DWDST7/8 Shop by Category > Air Conditioning>Adapters & Disconnects Chadwick & Trefethen 00561 FDrill America DWDST7 8 7 8" HSS Heavy Duty Split Point Stub Drill Bit, Qualtech, DWDST7 8 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