Screw Machine Drill Bits have a shorter length for better rigidity and drilling accuracy. Recommended for drilling sheet metal, stainless steel, truck and mobile home bodies.
Screw Machine Drill as referred to as "stub drill". Heavy duty high speed steel. Black oxide treated, 135 degree split point. The short flute and overall length increases their rigidity, resulting in better hole accuracy and extended tool life.
Short flute and overall length increase rigidity, resulting in better hole accuracy and extended tool life.
Premium cobalt high speed steel for incredible heat resistance and longer tool life.
Accurate drilling due to 135 Degree Split Point
Recommended for drilling high tensile materials like stainless steel, titanium, manganese steel, armor plate and iconel
Advantages
★ Less Length, More Rugged
Screw Machine Drills (also know as stub or stubby drills) have a short, rugged construction that 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 setup where spindle clearance is limited.
★ Versatile and Strong Drills
Screw Machine Drills are are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
They are manufactured to Aerospace Standard 907 with a 135 degree split point is self-centering and reduces thrust. Sizes smaller than 1/16 and larger than 1/2 have the 118 degree standard point.
★ Heavy Duty Split Point Tip
Drill America Screw Machine Drills have a heavy duty 135 degree split point for self-centering and reducing thrust. Sizes smaller than 1/16 and larger than 1/2 have the 118 degree standard point.
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