FAA AMT Airframe Practice Exam 2026 – All-in-One Study Guide to Master Aviation Maintenance Technician Certification!

When drilling stainless steel sheet material, it is important to use a lower speed with more pressure compared to aluminum alloy sheet. This is because stainless steel is a harder material and requires more force to be drilled, while aluminum can be drilled at a higher speed and with less pressure. Using the same speed and pressure as aluminum for stainless steel can lead to a poor quality hole or even break the drill bit. Similarly, using high speed with high pressure for stainless steel can cause the material to overheat and damage the drill bit. Therefore, option B is considered the best practice for drilling stainless steel sheet material.