This Irwin 10503992 Turbomax HSS Drill bit set with jet point tips. They are designed primarily for high performance drilling in sheet metal, however they also perform well in all types of wood and plastic and also stainless steel.

They have a 100 tip for a faster start and precise centering and guidance with a 140 cutting shoulder for a smooth finish that will drill perfectly round holes with clean exit holes and will not bind in multiple layers of thin material.

Set of 15 HSS Turbomax Drill bits – 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 9 and 10mm.