Call it planned obsolescence if you like, but manufacturers are increasingly using uncommon screws in their products to discourage customers from repairing their own devices. Silverhill Tools has released this 4 piece set of triangle head screwdrivers to allow repair pros a high quality, convenient set of tools with which to do their repairs. This set includes 4 sizes: TA18, TA20, TA23, and TA27. Use the velcro pouch included to store your screwdrivers, or even to keep small parts associated from your repair from getting lost.
Triangle head screws are frequently used to seal boxes in electronic games and with model railway power supplies like those of Lionel from the USA. My need was for the latter and one of the set was ideal and long enough to reach down the deep holes to undo the casing. In the UK such screwdrivers are rarely available in hardware stores or toolshops. Obviously you need to know what you are doing (safety wise) when opening up such devices.
I wanted this to dismantle a toaster. It did exactly that. Every toaster dismantler should have one. 132345769841535332357637335 .35471234567891234567891234567891234567898123456789123456678899876+54..01.0.0.2'nrf'on';pn#wpo'eoinv ;OR