Dewalt Power Tools Extreme Step Drill Bit 6-12mm Model_Nx 300 and the specially manufactured retaining

and the specially manufactured retaining spring ensures encapsulation of the wedge during expansion

metal surfaces and more

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They have a thicker body section than the Leopard Range with a larger shackle diameter and more key differs

Dewalt Power Tools Extreme Step Drill Bit 6-12mm Model_Nx 300 and the specially manufactured retainingThe DEWALT Extreme Step Drill Bit is produced for drilling and enlarging holes in metal. Suitable for construction steel, ferrous and non ferrous metals, plastic, and thin walled materials up to 3mm. Optimized geometry helps to penetrate material faster, achieving precise drilling without walking. The titanium coating provides increased wear resistance, corrosion resistance and up to 2x life (vs black oxide). The DEWALT Extreme Step Drill Bit 6 12mm.