Medium Carbon Steel

20 blades:
0.4, 0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7 mm

• For measuring the pitch of screw threads
• Range 0.4-7mm with Metric 60º thread type
• Blades individually marked with pitch
• Supplied in storage pouch