HNK Speed Square 250mm SKU: 177993 MODEL: HNK-M004 Error. try again later You've successfully joined the club $ 13 .99 each Mitre 10 MSAvailable at Mitre 10 MEGA and selected Mitre 10 stores. Variants A multi-purpose square for calculating angles, marking cuts on rafters, saw guide, rafter square, and many other functions. Features and benefits Aluminium Alloy. Durable Material. Easy to see graduations.