Adafruit tried half a dozen different 5-point star/"pentalobe" screwdriver tools to find the one they liked the most The body is made from a single piece of aluminum and has nice knurled grips. The end-cap rotates so you can keep the body steady while rotating. The tip is nicely machined and is magnetic so it holds the miniscule screws in place while inserting/removing them
Pentalobe 1.2mm screws are used in MacBook Air cases. Check your Air laptop to verify it uses Pentalobe screws before purchasing.
Weight: 25 grams