OOKWE 3Pcs HSS Step Drill Bit Set Hex Shank Drive Quick Change Steel Cone Drill Bit

Features: Premium Materials: Made of high speed steel material and used nitriding technology for added durability and bit life. Easy Drilling: Two-flute design for smoother cutting. High step design let you feel the stop and never drill bigger in mistake. Package Included: 3-Piece HSS Groove Step Drill Bit (3-12/ 4-12/ 4-20mm ) with a transparent box. Hex shaft drives are suitable for all kinds of for home DIY power drills. Hexagonal Shank: This multifunctional drill bits is very easy to install Suitable for hand-held drilling rigs drilling machines milling machines and machining centers etc. Multiple Application: Perfect for drill holes in steel copper plastic aluminum and other thin materials (The thickness of steel and copper is less than 3mm and the thickness of other materials is less than 5mm).Ideal for DIY projects household maintenance and repair. Package Includes: 3 Piece-set Step Drill Bit Specifications: Material: High Speed Steel Size: Approx. 88x65x22mm/3.46x2.56x0.87 inches Color: Black note: 1.Please allow 1-2cm errors due to manual measurement make sure that you do not mind before you order. 2.Due to the difference between different monitors the picture may not reflect the actual color of the item.