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THREADING
Straight Flute:
These taps are used for threading blind holes or through holes. 
These are general-purpose taps, and can also be used for hand tapping.
Spiral Flute:
These taps are used for threading blind holes in aluminum, brass, and softer steels, and when chip clearing can be 
an issue. The flute geometry draws the chips upward, out of the hole.
Spiral Point:
These taps are used for treading through holes. The flute geometry is designed to push the chips ahead of the 
cutting action, down into the hole, which prevents chips from loading up the flutes.
Through-Tool Coolant (Coolant Fed) Taps:
These taps have internal passages that allow coolant to flow through the tool, directly to the cutting edge, 
for high-efficiency processing and deep-hole tapping. When used with high-pressure through-spindle coolant 
systems, these taps provide better chip evacuation, less tool wear, longer tool life, shorter cycle times, and better 
overall thread quality.
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