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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 number 26 aircraft extension drill bit has a flute length of 1 7/8 inches, an overall length of six inches, and a diameter of 0.147 inches. This drill bit is made of cobalt steel.
This number 26 aircraft extension drill bit has a flute length of 1 7/8 inches, an overall length of six inches, and a diameter of 0.147 inches. This drill bit is made of cobalt steel.
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 28 aircraft extension drill bit has a flute length of 1 3/4 inches, an overall length of six inches, and a diameter of 0.1405 inches. This drill bit is made of cobalt steel.
This number 28 aircraft extension drill bit has a flute length of 1 3/4 inches, an overall length of six inches, and a diameter of 0.1405 inches. This drill bit is made of cobalt steel.
This number 29 aircraft extension drill bit has a flute length of 1 3/4 inches, an overall length of six inches, and a diameter of 0.136 inches. This drill bit is made of cobalt steel.
This number 29 aircraft extension drill bit has a flute length of 1 3/4 inches, an overall length of six inches, and a diameter of 0.136 inches. This drill bit is made of cobalt steel.
This number 49, cobalt steel, aircraft extension drill bit has a flute length of one inch, an overall length of six inches, and a diameter of 0.073 inches.
This number 49, cobalt steel, aircraft extension drill bit has a flute length of one inch, an overall length of six inches, and a diameter of 0.073 inches.
This number five, cobalt steel, aircraft extension drill bit has a flute length of 2 1/2 inches, an overall length of six inches, and a diameter of 0.2055 inches.
This number five, cobalt steel, aircraft extension drill bit has a flute length of 2 1/2 inches, an overall length of six inches, and a diameter of 0.2055 inches.
This aircraft extension drill bit is six inches long and has a diameter of 9/64 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 9/64 inches. It has a 135 Degrees split point and is made of cobalt steel with a gold finish.
This drill bit is made of cobalt and has a 0.041 inch diameter shank. This long aircraft bit has a bronze finish, and has fractional inch measurements.
This drill bit is made of cobalt and has a 0.041 inch diameter shank. This long aircraft bit has a bronze finish, and has fractional inch measurements.
This number seven, cobalt steel, aircraft extension drill bit has a flute length of 2 7/16 inches, an overall length of six inches, and a diameter of 0.201 inches.
This number seven, cobalt steel, aircraft extension drill bit has a flute length of 2 7/16 inches, an overall length of six inches, and a diameter of 0.201 inches.
This number four, cobalt steel, aircraft extension drill bit has a flute length of 2 1/2 inches, an overall length of six inches, and a diameter of 0.209 inches.
This number four, cobalt steel, aircraft extension drill bit has a flute length of 2 1/2 inches, an overall length of six inches, and a diameter of 0.209 inches.
This number 48, cobalt steel, aircraft extension drill bit has a flute length of one inch, an overall length of six inches, and a diameter of 0.076 inches.
This number 48, cobalt steel, aircraft extension drill bit has a flute length of one inch, an overall length of six inches, and a diameter of 0.076 inches.
This number 24 aircraft extension drill bit has a flute length of two inches, an overall length of six inches, and a diameter of 0.152 inches. This drill bit is made of cobalt steel.
This number 24 aircraft extension drill bit has a flute length of two inches, an overall length of six inches, and a diameter of 0.152 inches. This drill bit is made of cobalt steel.
This aircraft extension drill bit is six inches long and has a diameter of 3/32 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 3/32 inches. It has a 135 Degrees split point and is made of cobalt steel with a gold finish.
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