Manufactured from 4241 HSS for maximum strength and durability. Ground flute for increased accuracy when drilling. • 2.5mm, 3mm, 3.2mm, 4mm, 4.2mm, 4.5mm, 5mm, 6mm, 6.5mm, 6.8mm, 7mm, 7.5mm, 8mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12.5mm and 13mm.
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