12mm/1/2” Shank Ø
Produces closed slots for woodruff keys to DIN 6888. For milling structural, carburizing and heat treated steel up to 900N/mm2. Manufactured to BS 122 : Part 4 : 1980. Made to DIN 850.

Metric Limits of Tolerances
Diameter: + 0.000 -0.127
Width 2 up to 4: - 0.014 -0.028
Width 4 up to 7: - 0.020 -0.038
Width 7mm up: - 0.025 -0.047