Introduction

●	Made of high-quality HSS through all-grinding
●	Whole process of drilling, tapping and deburring/countersinking completed through one-time operation, saving time and labor
●	Designed with back tap to prevent damaging threads due to over-drilling
●	A little lubricant required as tapping is slower than drilling
●	Applicable thickness: 3.5MM thick medium carbon steel sheet
●	Scope of application: in general, through-hole machining of carbon steel, alloy steel, cast iron, etc.