I AM DZUS
Dzus fasteners come in various sizes, and slot radii. Although tools are available for R&R, many people use screwdrivers which do not engage fully, can slip, gouge paint and damage the finish. They also do not have enough leverage for stubborn fasteners. Many of us have damaged or broken screwdrivers that can be modified in minutes to make an ideal tool. Find a washer that fits the fastener radius fully, and braze or weld it to the screwdriver as shown. (You May need several sizes) This not only creates full engagement, but provides leverage.

Archie Frangoudis
Archies Racing Service
Nashua, NH
November, 2018