Precision Twist QC0860P 5/32 X 8In OAL Bright High Speed Steel Extra Length Parabolic Flute Drill 135 Degree Split Point 055610

The Precision Twist QC0860P (8In.OAL) and the QC1290P (12In.OAL) extra-long length drill bit is a wide land parabolic flute design, 135-degree radius split point, round shank drill bit made of HSS with an uncoated finish. It is suitable for drilling to a depth up to ten times the diameter of the drill. Good for portable or machine drilling. The shank diameter is the same as the drill size. It was designed for drilling holes into a wide variety of metals and synthetic materials with best performance in steel and cast iron. These series’ have a wide land parabolic flute design that enhances chip formation and evacuation of chips (also called Swarf). Coolant has a better flow to the drill point for heat dissipation, and higher speeds and feeds for increased productivity. It is recommended with this design to use a constant heavy feed rate while drilling. This design has a reinforced web which provides increased drill strength and rigidity, and straighter closer tolerance holes. It has an uncoated finish which helps keep costs down, and provides acceptable performance in most situations. The finish helps increase chip flow in soft materials.