Dormer E500 HSS Coarse Tap Straight Flute 3.5mm Taper A4-D it folds flat for compact

it folds flat for compact storage and for easy transport

3/8" Max Dia Tail x 1/4" BSP (tapered) male thread

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3-14mm - HC99

Dormer E500 HSS Coarse Tap Straight Flute 3.5mm Taper A4-D it folds flat for compactDormer 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