"HakkaDeal Features: 1.The ladder of its unique structure,a bit can open a variety of specifications of aperture. 2.Do not need to use center punch,compared with the ordinary twist drill is not easy to be broken. 3.Deburring,chamfering,elliptic hole enlargement,twist drill,the function of them was unable,but it is possible. 4.The use of tools:drill,bench drill.Work while water cooling,can effectively extend the service life of drill bit,recommend drilling rate of 250-250 RPM. Package include 1x Hex Titanium Step Drill Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3 cm Warranty 1 Month Money back if you are not satisfied with the product. Please contact us via email if you have any questions. "
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