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Cobalt Extended-Length Drill Bits
Cobalt extended-length drill bits tolerate higher drilling speeds and are harder and more wear-resistant than high-speed steel extended-length drill bits. They provide some shock absorption and can be used in handheld power tools. These extended-length drill bits have longer flutes and more overall length than standard jobber-length drill bits of the same size, and they have longer shanks than taper-length drill bits. Their extra length allows them to create deep holes or drill into hard-to-reach workpieces.
This aircraft extension drill bit is six inches long and has a diameter of 1/4 inches. It has a 135 Degrees split point and is made of cobalt steel with a gold finish.
This aircraft extension drill bit is six inches long and has a diameter of 1/4 inches. It has a 135 Degrees split point and is made of cobalt steel with a gold finish.
This number 44, cobalt steel, aircraft extension drill bit has a flute length of 1 1/8 inches, an overall length of six inches, and a diameter of 0.086 inches.
This number 44, cobalt steel, aircraft extension drill bit has a flute length of 1 1/8 inches, an overall length of six inches, and a diameter of 0.086 inches.
This number 27 aircraft extension drill bit has a flute length of 1 7/8 inches, an overall length of six inches, and a diameter of 0.144 inches. This drill bit is made of cobalt steel.
This number 27 aircraft extension drill bit has a flute length of 1 7/8 inches, an overall length of six inches, and a diameter of 0.144 inches. This drill bit is made of cobalt steel.
This number 52 aircraft extension drill bit has a flute length of 7/8 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.0635 inches.
This number 52 aircraft extension drill bit has a flute length of 7/8 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.0635 inches.
This number 57 aircraft extension drill bit has a flute length of 3/4 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.043 inches.
This number 57 aircraft extension drill bit has a flute length of 3/4 inches and an overall length of six inches. It is made of cobalt steel and has a diameter of 0.043 inches.
This number 12, cobalt steel, aircraft extension drill bit has a flute length of 2 5/16 inches, an overall length of six inches, and a diameter of 0.189 inches.
This number 12, cobalt steel, aircraft extension drill bit has a flute length of 2 5/16 inches, an overall length of six inches, and a diameter of 0.189 inches.
This number 30, cobalt steel, aircraft extension drill bit has a flute length of 1 5/8 inches, an overall length of six inches, and a diameter of 0.1285 inches.
This number 30, cobalt steel, aircraft extension drill bit has a flute length of 1 5/8 inches, an overall length of six inches, and a diameter of 0.1285 inches.
This number 25 aircraft extension drill bit has a flute length of 1 7/8 inches, an overall length of six inches, and a diameter of 0.1495 inches. This drill bit is made of cobalt steel.
This number 25 aircraft extension drill bit has a flute length of 1 7/8 inches, an overall length of six inches, and a diameter of 0.1495 inches. This drill bit is made of cobalt steel.
This number 47, cobalt steel, aircraft extension drill bit has a flute length of one inch, an overall length of six inches, and a diameter of 0.0785 inches.
This number 47, cobalt steel, aircraft extension drill bit has a flute length of one inch, an overall length of six inches, and a diameter of 0.0785 inches.
This number 39, cobalt steel, aircraft extension drill bit has a flute length of 1 3/8 inches, an overall length of six inches, and a diameter of 0.0995 inches.
This number 39, cobalt steel, aircraft extension drill bit has a flute length of 1 3/8 inches, an overall length of six inches, and a diameter of 0.0995 inches.
This number 11, cobalt steel, aircraft extension drill bit has a flute length of 2 5/16 inches, an overall length of six inches, and a diameter of 0.191 inches.
This number 11, cobalt steel, aircraft extension drill bit has a flute length of 2 5/16 inches, an overall length of six inches, and a diameter of 0.191 inches.
This number 40, cobalt steel, aircraft extension drill bit has a flute length of 1 3/8 inches, an overall length of six inches, and a diameter of 0.098 inches.
This number 40, cobalt steel, aircraft extension drill bit has a flute length of 1 3/8 inches, an overall length of six inches, and a diameter of 0.098 inches.
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