Irwin Steel Jack Panel Saw (L)490mm. With 10 teeth per inch this steel 490mm high quality c 75 steel blade jack panel saw from Irwin is specifically designed for domestic & trade use gives an universal cut. The triple ground teeth make short work of the material you need to cut down to size. It comes with an ergonomically designed soft grip so you can work for a prolonged period of time. With a 45° & 90° angle guide built in you can easily cut a specific angle with complete accuracy.