Tridon Clamp S S 117 140mm 10Pc Pkt 910630R SSA10 Toledo Engineers Square 250mm GR1033 SSA10 Toledo Engineers Square 250mm Used for producing right angles in carpentry and engineering applications Internal & External Squareness as per BS 939 Grade B An excellent range of precision steel squares that are second to none Hardened spring steel blades are permanently fixed to the stock by means of tapered self locking rivets which ensure complete rigidity Both the blade and stock are precisely ground to ensure straightness and parallelism Working edges of the blades are lapped which further enhances accuracy A groove on the inner corner of the stock aids in the clearance of burr or dirt Type: Non graduated Blade length: 250mm smartphone charging Made in Australia the flexible all stainless steel perforated band clamp design delivers low free torque for ease of installation and high strength for reliable high quality sealing