HSS-Co 5% 2 Flute Threaded Shank Short Series Slot Drills - Inch

Short Series - Metric.
Bright finish. Flute type: 30° helix. Manufactured to BS 122: Part 4: 1980.

Inch Tolerances:
Diameter: ~ up to 1/2". Tolerance: +0.0005, -0.0013.
Diameter: Over 1/2". Tolerance:+0.0005, -0.0015.