Snap-On are too sharp and too brittle. You will never see a machinist using Snap-Off drilling/cutting tools. Same goes for their thread cutting taps and die sets.
AVOID AT ALL COSTS.
McMaster Carr or MSC are your friends here. Order the black phosphate finish as it carries lube to the cutting flute.
Cobalt is brittle but necessary for harder materials or broken tap removal.
Harbor Freight has the best/cost effective step drills.
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Jim Grant
Melbourne, Australia
(Dual citizen)
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