BGS TECHNIC step drill set - Titanium Nitride - 3 pcs - 1624, for clean and fast cutting. This drill allows to cut several diameters of surfaces, from 6 mm to 40,5 mm, on a short distance. This maximizes accuracy and reduces user effort. The titanium nitride coated HSS steel drill bit is operational on metals, is hardened and more corrosion resistant for a long life. Choose quality tools from a traditional family business with strong values and a focus on expertise. For almost 50 years, BGS TECHNIC has been offering a wide range of tools, which are expanded daily. German quality in addition! Advantages: Precise and fast cutting on a multitude of materials HSS steel and titanium nitride Low wear for a long service life Drill bits stored in a drilling cassette, sizes indicated Features: 1 Drill with 9 steps: 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 mm 1 Drill with 9 stages: 4 - 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 mm 1 drill with 14 stages: 4 - 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 - 22 - 24 - 26 - 28 - 30 mm Material: HSS steel and titanium nitride Weight: 420 g Packaging: One set of BGS TECHNIC step drills - Titanium Nitride - 3 pcs - 1624Delivered in original packaging Warranty All BGS TECHNIC products are guaranteed for 2 years