DaduoRi 1" Dry Core Drill Bits, 2-Piece with 3 Adapters (SDS Plus, SDS Max, 1/2" Hex Shank), 9.5" Depth Core Bits for Brick and Block, Concrete, Stucco, Masonry, 5/8"-11 Thread (No Pilot)

Features

• Package(No Pilot Bit): This concrete core bit kit includes 5/8"-11 thread adapters for SDS Plus, SDS Max, and 1/2" Hex shank, a user manual, and 2 pcs dry core drill bits for depths up to 9.5 inches (Outer diameter: 1 inch)
• Versatile Adapters: Equipped with adapters for easy use with rotary hammers and standard drill, compatible with both fixed or handheld drilling machines with 5/8-11 threads, ensuring broad applicability and flexibility in various drilling scenarios (Never use the hammering mode)
• Operation Tip: Start drilling with the core bit at a 15-degree angle, allowing it to slowly grip and hold, then pivot to a 90-degree vertical drilling position, and continue to dig deeper
• Efficient Dry Drilling: This 1" sds core drill bit designed for dry drilling but recommended to USE WATER when encountering concrete or high-hardness materials to prevent tooth breakage and enhance drilling efficiency
• Multi-Material Drilling: This 1 inch core drill bit perfects for drilling into soft concrete(no rebar), brick, stone, and masonry, making it versatile for HVAC, electrical, and plumbing tasks. Good for DIYer