They still cost quite a lot compared to some but Facom are the best value for quality allen keys out there, no contest.
Around £20 will buy you a ball ended set (3/32 up to 3/8, 8 keys) that won't break and they come in a folding holder which means you won't loose them.
Part number 83SH.JP8U
Thay do a metric equivilent too.
There are other Allen keys on the market but Facom are for life and not just for christmas.
Ps, if you manage to brake the ball end off an allen key then you are using it wrong, they are designed so that you use the short end and long leverage to crack the nut off then spin it out on the ball end, not the other way round.
Around £20 will buy you a ball ended set (3/32 up to 3/8, 8 keys) that won't break and they come in a folding holder which means you won't loose them.
Part number 83SH.JP8U
Thay do a metric equivilent too.
There are other Allen keys on the market but Facom are for life and not just for christmas.
Ps, if you manage to brake the ball end off an allen key then you are using it wrong, they are designed so that you use the short end and long leverage to crack the nut off then spin it out on the ball end, not the other way round.