Dormer E500 HSS Coarse Tap Straight Flute 20mm Second water resistant making it a good first

making it a good first choice for general machining

Double buttoned

you can store the Aerator Rake in a space-saving manner

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Dormer E500 HSS Coarse Tap Straight Flute 20mm Second water resistant making it a good firstDormer E500 straight flute taps are the only type of taps that can be used by hand, but they may also be used in a machine if required. Extremely versatile, can tap through or blind holes in most materials. When tapping blind holes straight flute taps should be used in sets. The three taps which form a set are known by more than one name. 1. Taper or First tap 2. Second or Intermediate tap 3. Bottoming, third or plug tap. Metric coarse straight flute