#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank

Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit, Black Oxide Finish, Round Shank, Spiral Flute, 135 Degree Split Point, #30 Size (Pack of 6): Industrial & Scientific. Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit, Black Oxide Finish, Round Shank, Spiral Flute, 135 Degree Split Point, #30 Size (Pack of 6): Industrial & Scientific. Aircraft extension drill bit meets NAS 907 Type C specifications and has a 6" overall length for drilling hard-to-reach areas 。 Designed for drilling high-tensile strength alloy steel 。 High-speed steel (HSS) provides hardness for wear resistance 。 Black oxide finish reduces wear while promoting chip and coolant flow 。 Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging 。 The 1180 series aircraft extension 6" long drill bit is made from high-speed steel with a black oxide finish, has a 135-degree split point for use on high-tensile strength alloy steel, and meets National Aerospace (NAS) 907 Type C and American National Standards Institute (ANSI) specifications. The aircraft extension drill bit is longer than long-length twist drill bits for difficult-to-reach areas. High-speed steel (HSS) provides hardness for wear resistance, and the black oxide finish reduces wear while promoting chip and coolant flow. The self-centering 135-degree split point penetrates hard material without a pilot hole and produces smaller chips that reduce clogging compared to a 118-degree point. The round shank accommodates most drill chucks. 。Drill bits are cutting tools used to make holes in a range of materials using machines such as handheld portable drills, machining centers, and lathes. Drill bits come in a variety of lengths and types, the most common of which is the twist drill bit. The round, twisted shaft of the twist drill bit typically has two cutting edges and flutes. The helical twist of the flutes brings chips up and away from the cutting edges and allows for coolant to reach the cutting edges. Jobber length twist drill bits, the most common length of twist drill bit, offer a good compromise of length and reach for the widest range of materials and applications. Mechanic's length twist drill bits (also called maintenance length) are a little shorter than jobber length and less prone to deflection when drilling. Short length twist drill bits (also called stub or screw-machine length) are the shortest and stiffest twist drill bits, helping to reduce the chance of deflection or breakage when drilling. Reduced shank twist drill bits (also called Silver and Deming drill bits) have a shank that is smaller in diameter than its shaft, permitting drilling machines with a 1/4", 1/2", or 3/4" drill chuck to create large holes. Long length twist drill bits (also called taper length) are a little longer than jobber length, allowing for deeper holes and longer reach. Extra-long length twist drill bits (also called extension) are longer than long length twist drill bits for greater reach or for drilling deeper holes.。 manufactures cutting tools such as drill bits, reamers, taps, dies, annular cutters, end mills, and burs. The company, founded in 1978, is headquartered in Baton Rouge, LA.。 。 。 。

#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank
#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank
#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank
#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank
#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank
#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank
#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank

#30 Size Black Oxide Finish 135 Degree Split Point Pack of 6 Drillco 1180 Series High-Speed Steel Aircraft Extension Drill Bit Spiral Flute Round Shank

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