Used to make new threads or re-thread damaged and/or jammed threads | High Speed Steel Hand Taps come in three styles: Taper Style: Starts the thread square with the workpiece. Plug Style: Generally used in thru holes. Bottom Style: Generate the thread to the bottom of the hole. | High speed steel hand taps are the most versatile taps for hand use, or for tapping under power | Hand taps are popular for use in general machine tapping or CNC tapping | Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications

Super value - 1 PH Meter(yellow) +1 TDS & EC Meter (blue)+1soil tester kit (green). Total is 3 PCS. | Functions - The digital pH pen is equipped with auto temperature compensation function. TDS meter has lock & auto shut off function(Kindly remind : This meter can't test sea water.). Pushing the button, it can display the data about water purity level on the screen in PPM (parts per million). The soil meter can test soil pH to help you control the PH level in soil. (Note: this tester is designed for testing soil ONLY.) | Accurate & reliable - these testers can test quickly and accurately within ±0.01 pH. It only takes a few seconds to show accurate and stable reading for the result to appear on screen. | Easy to use - ph tester and TDS meter have sensitive electrode sensor ,simply press "ON". It only takes a few seconds for your result to appear the data on screen. Soil test kit just need to insert the probes into the soil about 4-6 inches, and wait for about 10 seconds to read the intuitive data. No battery required. | Widely application - these meters are designed small and convenient. PH meter and TD&EC meter can test pH balance, ideal for testing drinking water, swimming pools, aquarium, spas, hydroponics, food and more. Soil tester is applicable to plants, garden, lawn and farm such as rice/vegetables/flowers etc.