Machinist Square 90 Right Angle Engineer Carpenter Square with Seat Precision Ground Steel Hardened Angle Ruler

Description:  Machinist Square 90º Right Angle Engineer Carpenter Square with Seat Precision Ground Steel Hardened Angle Ruler.  Specification:  1#: 50x40mm.  2#: 75x50mm.  3#: 100x75mm.  Material: high carbon steel.  Straightness Precision: 7 & micro; m.  Standard: DIN 875 Grade 2.  Size: Height x Width x Base width x Base thickness.  50x40: 50 x 40 x 15 x 4mm.  75x50: 75 x 50 x 15.5 x 4.5mm.  100x70: 100 x 70 x 20 x 5mm.  Features:  - Hardened stainless steel.  - All are heat treated.  - All are specially hardened and fine ground.  - High precision measuring tools for square.  - Suitable for detecting angles and marking on parts.  Package Included:  1 X Flat Edge Square