What Size Drill Bit for a 4-40 Tap?
4-40 taps are used generally used for tapping stainless steel. If you’re here, you’re probably looking for what size drill bit for a 4-40 tap. It’s important to use the right drill bit size, so the fit and function are correct. What Size Drill Bit for a 4-40 Tap? A 4-40 tap would need a … Read more