Use this precision Tri-point Y0 DIY or professional electronics repair. Slightly different from a "tri-wing", this driver fits some of the smaller "tri" screws found on Apple track pads and other products.
The iFixit Tri-point Y0 screwdriver features a knurled grip and rubberized, ergonomic handle with swivel top. Made in Taiwan with uncompromising quality in manufacturing, this precision Tri-point Y0 screwdriver is the last driver you'll ever need to buy. And to back that up, it's covered by iFixit's Lifetime Warranty.