7Pc. Threading Set SATA 50457

7Pc. Threading Set SATA 50457
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Introduction
6-piece compound tap drill set: M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5                
1-piece 1/4" quick change magnetic holder                
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                
Scope of application: in general, through-hole machining of carbon steel, alloy steel, cast iron, etc.
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No warranty