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This is a high-performance 3-1/2 inch diamond dry core drill bit set, perfect for your toughest drilling projects. The set includes the core drill bit itself, three versatile adapters (for SDS Plus, SDS Max, and 1/2 inch hex drill bits), and a pilot drill, providing exceptional compatibility with most standard and hammer drills.
Engineered for precision and durability, this bit is crafted from premium carbon steel with high-precision welding, achieving a 95HRB hardness. It features diamond-grit teeth that are precision-ground for smooth, burr-free cuts and excellent wear resistance. The integrated pilot drill allows for fast, accurate positioning without pre-drilling, ensuring clean holes from the start. Its robust construction resists heat buildup and prevents blade detachment during high-speed or dry drilling operations.
Ideal for drilling through reinforced concrete, red brick, concrete, and foam brick, this core bit is widely used in air conditioning installations, plumbing, stair railings, and various construction projects on highways, airports, and more.
Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.
