1/2" - 28 UNEF Right Hand Tap and Die Set

Specifications:Model: 1/2-28 UNEF2. Material: High Speed Steel3. Color: Silver4. Scope of application: Generally used for through-hole processing of carbon steel, alloy steel, cast iron, etc.Usage method:When tapping, insert the head tapping center line and drilling center line.- It is necessary to rotate evenly, but also to tap gently and forcefully. Do not add pressure after tapping.- Every turn, turn about 45 degrees, chips, in order to avoid blockage.- If the increase of rotating force is not able to rotate or knock hard, otherwise it will break.Contains a tap, a circular tooth