Dormer E501M12NO1 Series E501 HSS Straight Flute Hand Tap Metric with Bright Finish, ISO Standard, Left Handed, NO1, M12 x 1.75 mm Thread, 89 mm Length

• Bright finish - prevents work piece material from sticking to the cutting edge
• Premium HSS material - high speed steel provides superior performance and extend tool life
• Straight flute - designed for efficient threading of through and blind holes
• ISO Standard - manufactured conforming to the international standardisation organisation
• Versatile product - first choice for tapping aluminium, also suitable for steel, stainless steel and cast iron

Dormer e501 hss metric coarse left hand tap 12.00 mm taper 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. They can be used for either through or blind holes. 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 taps - LEFT HAND THREAD. Tolerance : Class 2 for 6H Fit Surface treatment : Bright Material : HSS High Speed Steel Chamfer No : 1,2 and 3, Serail no 4 and 5 Flute Geometry : Straight Flutes - left hand ISO529