SIZE - This drill set includes 6mm/8mm/10mm/12mm/13mm diameter drills, one of each size, to meet your more needs in the work process. The 1/4" quick change hex shank can improve your work efficiency.
MATERIAL - The hex drill bits are made of M35 cobalt high-speed steel with sharp edges. Through high-temperature heat treatment, the metal drill bits have higher hardness, wear resistance, corrosion resistance, and longer life than ordinary drills.
FEATURES - 1/4" hex shank allows for quick drill bit changes. Fully ground spiral flute design quickly removes debris, reduces friction and heat, and drills faster. 135° straight shank split point reduces walking on the work surface, making drilling precise and easy.
USAGE - The hex twist drill bit is used for DIY projects, household maintenance, etc. Suitable for stainless steel, copper, aluminum, zinc alloy, cast iron, wood, plastic.
CAUTION - Use properly, let cool and use gently. Proper use can significantly extend the life of your twist drill bit.
1. Hex drill bits are made of M35 cobalt high-speed steel with a sharp edge. High-temperature heat treatment gives these metal drill bits greater hardness, wear resistance, corrosion resistance, and a longer lifespan than regular drills. 2. The 1/4" hex shank allows for quick drill bit changes, eliminating the frustration of rotating the handle over the chuck and allowing the bit to lock into the chuck quickly. It's suitable for most electric hand drills and drill machines. 3. The fully polished spiral flute design quickly removes debris, reduces friction and heat, and allows for faster drilling. The 135° straight shank split point reduces walking on the work surface, making drilling more accurate and easier. 4. Hex twist drill bits are used for DIY projects, household maintenance, and other applications. They are suitable for steel, copper, aluminum, zinc alloys, cast iron, wood, and plastic. 5. Use them properly, allow them to cool, and use them gently. Proper use can significantly extend the life of twist drill bits.
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