Aluminium junior hacksaw mitre box this aluminium junior hacksaw mitre box is the perfect way to teach your younger ones the ways of the trade or let them pretend to help you out doing the diy the hack saw is a 150mm hacksaw frame constructed from aluminium with 24 teeth per inch the aluminium mitre box can be used for cutting 45 and 90 degree angles diy hacksaw mitre box junior set 150mm hacksaw frame 24 teeth per inch aluminium mitre box 45 and 90 degree cuts r