LATEST MANGA UPDATES
Drill America 9/32 x 12 High Speed Steel Aircraft Extension Drill Bit DWDA/C Series
Drill America 9/32' x 12' High Speed Steel Aircraft Extension Drill Bit, DWDA/C Series: Extra Long Drill Bits: Power & Hand Tools. Drill America 9/32" x 12" High Speed Steel Aircraft Extension Drill Bit, DWDA/C Series: Extra Long Drill Bits: Power & Hand Tools. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance . Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge . Round shanks allow use with a wide variety of tool holding systems . When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging . Manufactured to national aerospace standard 907 . DWDA/C Series High-Speed Steel drill bit is manufactured to National Aerospace Standard 907. 135 split point is self-centering and reduces thrust. Ideal for drilling in mild steels where extra length for reach is required. They have a black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow. . . .


