THE NEW TECHNOLOGY IN DRILLING EQUIPMENT! The Titanium Coated Bit Set is bearing steel combined with a titanium coating. It makes your industrial buildings more perfect. Step design allows drill bits cutting precise and efficient, convenience, and widely used. The set includes 3 individual drills. It is economical and easy to store. The titanium coating is great for drilling holes in various materials such as steel, brass, wood, plastic and more. FEATURES: EFFICIENT TOOL: The drill bit set is combined with the multi-grid drill bits and the sharp edge to facilitate the removal of cutting waste when drilling, preventing iron shavings or sawdust from scattering, makes drilling cutting faster, more accurate, smoother, and more efficient. PRACTICAL: A combination set of 3 specifications and 3-step drills meet your diverse needs and improve work efficiency. DURABLE: It is made of high quality bearing steel, titanium plated surface so it is anti-oxidation, no rust, wear resistant and long life. PORTABLE: It includes the most commonly used drill size, light and small so does not take up space. It can be stored in your toolbox and used anytime and anywhere, convenient and fast. WIDE USE: Titanium coating allows for easy cutting through steel plates, aluminium plates, copper & plastic & wooden plate, and many other types of sheet metal convenience including tile, concrete, tile, brick, wood, plastic, glass, masonry, etc. Important note: Stainless steel and spring steel are not applicable. Not for quenching. (Water injection cooling while working, it can effectively prolong the life of the drill bit, especially in the case of continuous drilling). HOW TO USE: Connect the drill to the drilling machine. Use other tools to measure the diameter of the required hole size. Select the corresponding size of the step drill bit Install the step drill correctly on the electric drill, finally aiming at the position of the target hole perpendicular to the workpiece. Start drilling to the required size. NOTE: Due to the outer diameter of each step drill bit being gradually expanded, then the corresponding cutting resistance and linear speed will also be gradually increased. The step drill completely depends on the chamfer being 1 mm long. If the feed rate is too high during drilling, it will be easily annealed out caused by wear of the bevel. Please apply a downward force while drilling, do not press too hard to avoid edge wear. SPECIFICATIONS: Material: High-speed carbon steel Shank type: Hex shank Size: Drill bit 3- 12mm: 81 x 6.35 mm Drill bit 4- 12mm: 69 x 6.35 mm Drill bit 4- 20mm: 71 x 6.35 mm PACKAGE INCLUDES: 1 x Titanium Coated Bits Set (3 pieces / set) 1 x Drill bit 3-12 mm 1 x drill bit 4-12 mm 1 x Drill bit 4-20 mm 1 x Bag (Random Colour)
