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Given the ever-improving quality of taps, modern tap designs can be expected to last between 15 and 20 years typically.My seven ways to avoid breaking a tap include:1Choosing the best hole size.2Using form taps when possible.3Thread mill critical and tough jobs.4Use purpose-made tapping lubricants.5Use the right tool holder.6Extract chips with a spiral-fluted tap.7Mind the depth on blind holes.
