Bosch HSS Metal Drill Bit - 3.5mm

This bit is designed for drilling clearance and pilot holes in alloyed and non-alloyed steel, non-ferrous metals, cast steel, cast iron, plastics, and wood.

The self-centering PointTeQ tip prevents the bit from wandering on the surface, allowing for greater accuracy and a faster start to the drilling process.

The black-oxide coating on the flute helps with fast chip removal, preventing clogging and improving the efficiency of the drilling operation.

The design, including the increased drilling rate, helps to dissipate heat more effectively and reduces wear on the bit's cutting edge, contributing to its durability and sustained sharpness.

This drill bit has a cylindrical shank and is compatible with standard three-jaw drill chucks.

This 3.5mm bit is primarily intended for drilling clearance and pilot holes. For larger diameter holes, you would need a drill bit of a corresponding size.

Clean debris from the flutes after use and store in a dry place. Using cutting fluid for harder metals can prolong its life and sharpness.

Ensure the PointTeQ tip is centered on your mark. For harder materials, consider creating a small pilot dimple with a center punch before drilling.

Reduce drilling speed, apply steady pressure, and use a lubricant or cutting fluid. Ensure the flutes are clear of debris.

Periodically retract the drill bit slightly while drilling to clear chips. Ensure the black-oxide flute is not obstructed.

Check the sharpness of the PointTeQ tip. If excessively worn, the bit may need replacement. Ensure you are using appropriate speed and pressure for the material.