7Pcs Tap Set 1/4 Hex Shank Metric Drilling and Tapping Integrated Compound Spiral Notch Kit

1、Adopts an integrated design and centralized operation of drilling and tapping which is more convenient. 2、Suitable for cutting and drilling wood plastic aluminum tin alloy and other materials. 3、The tapping adopts spiral notch design which has better chip removal effect and is suitable for blind hole processing. 4、The tap is made of high speed steel which has high hardness and high wear resistance and is not easy to deform. 5、Can be operated manually or on a machine tool and is often used in industrial manufacturing automobile maintenance machine tool processing etc.