High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
Weldon shanks feature a round shank with one of more flats machined into the side for easy indexing and alignment
Through-hole flute style has a single flute that passes through the cutting head to reduce vibration and chip clogging; also called "zero flute"
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Drill America piloted 82 degrees countersink is high-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Weldon shanks feature a round shank with one of more flats machined into the side for easy indexing and alignment. Through-hole flute style has a single flute that passes through the cutting head to reduce vibration and chip clogging; also called "zero flute".
