How Unscrew an H Type Screw H Type Screw

Ιn this way you will be able to unscrew H-type screws in electrical appliances

Supplies

self drilling screw

dremel

caliper (optional)

Step 1:

with the dremel shape the screw

Step 2:

flatten the screw end

Step 3:

reduce the thickness of the bit until it is equal to the thickness of the screw slot

Step 4:

make a notch in the middle corresponding to the depth of the screw