you looking for low price Precision Twist SPL 90 High Speed Steel Spotting Drill Bit, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 90 Degree Point Angle, 1/2"?

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• Long-length spotting drill bits, for easier hole-starting
• 90-degree conventional point angles, for reduced stress on drill's corners
• Round shanks, for use on a variety of tool-holding systems
• Uncoated (bright), for use with a wide range of drilling materials
• High-speed steel (HSS), for use on a wide variety of materials

The Precision SPL-90 long-length bit is a round shank, spotting drill bit made of HSS with an uncoated finish and is used for starting a hole. It is suitable for drilling to a depth up to one times the diameter of the drill. The shank diameter is the same as the drill size. It is suitable for drilling to a wide variety of metals and synthetic materials performing best with steel, copper, and aluminum magnesium.

The SPL-90 series with a 90-degree conventional point geometry, should only be used to start holes; do not go deeper than the diameter of the drill bit. The 90-degree point angle is better suited for softer materials or using a drill with a smaller drill point angle, such as the 118-degree model. The longer length gives extra reach for hole-starting. The uncoated finish helps increase chip flow in soft materials. Spiral flutes act as a passageway for chip extraction from the hole and for coolant to enter the hole. Right-hand twist brings chips up and away from the cutting edge.

Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits can be used in hand-operated drills, standalone drill presses, or a lathe. They are made to ANSI industry standards, which ensure that drill bits around the world, confirm to the same specifications.

Precision manufactures machine tools under the following brands: Precision Twist, Precision Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.

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