DRILL BIT STUBBY DOUBLE END NO.11

When you go to buy a drill bit, what are you needing? Just a drill? or do you actually want HOLES? Rigorous independent testing has proven that the Gold Series Drills outperform other Australian drills on the market by more than 30% - giving you more holes for your dollar in every single drill bit! The following are important in drill use: - Clamp the work piece securely - Select the correct speed and feed - Use an appropriate coolant or lubricant - Ensure the shank is securely held. Avoid using work drill chucks as the drill may slip during use. - Regrind the point or replace the drill before it fulls, do not force a worn drill. - When deep hole drilling, withdraw frequently to clear the chips (deep holes start at 4X the diameter). - For stainless steel, manganese and high tensile steels, do not allow the drill to swell as it will cause work-hardening. Use a slower speed and heavier feed for these materials.
For effective drilling, the rigidity of the drill and work piece are most important.