Spiral Grooved Step Drill Bit Set, High Speed Steel Titanium Coated, 4mm to 12/20/32 mm (5/32" to 5/4") Hex Shank Metric, HSS Cut Tool Set for DIY Plastic Wood Metal Aluminum Copper

• 【Two-Flute Spiral Groove Design】Enables a faster, more stable and smoother cutting. It can automatically chamfer the hole to clean the drill bit. ●Only sales from XQ7 are quality guaranteed. Before placing order, please confirm product sold by XQ7.
• 【HSS & Titanium Coated】Made of super strong HSS steel and coated with Titanium, Titanium coating ensures easy cutting steel, Aluminum sheet, Brass, Copper, plastic, wood etc.
• 【Hex Shank】1/4"(6.35mm) hex shank work with most drill or drills with 1/4" chuck , fits into power tools chuck securely and eliminates slip.
• 【Application】Suitable for sheet metal, sink, car repair, etc. Widely used to cut holes in a variety of material like plate, aluminum, insulation board, PVC board, the thickness of wood within 5mm.
• 【Convenience】Step drill allows to cut several sizes hole with one drill bit, easily without changing bit constantly.

Attention: Please cool down with water when working because of the high temperature,so that the validity period can last longer. The speed is advised to be 250-400RPM/Min -Unique step design,a drill bit can be used to open holes of various sizes,means the equivalent of a box of drill -High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance -Having Mutifunction, a terrific helper to be used for deburring,chamfering,expanding hole -Stable,working witout pre-working. -Packed in a Nylon Bag,offering good protection. Usage: Aplly in gun-drilling,bench drill Material: HSS Steel Finish: Titanium Type: Step Drill Head Type: Hexagon Shank Quantity: 3PCS Material: High Speed Steel Surface Treatment: Titanium coated Color: As the picture shows Package Include: 1X Set(3pcs) Step Drill with Nylon Bag