Core Drill Bit Adapter 1-1/4"-7 Male Thread to SDS Plus Shank, Heavy-Duty Converter for Diamond Core Bits, Fits Rotary Hammer Drills, Concrete & Masonry Drilling

Upgrade your concrete core drilling efficiency with the HBKEEN 1-1/4"-7 Male to SDS Plus Core Drill Bit Adapter — engineered for high-performance connection between diamond core bits and SDS Plus rotary hammer drills. This core drill bit adapter features a 1-1/4"-7 UNC external thread, precisely machined for compatibility with most standard dry and wet core drill bits, and a SDS Plus shank for fast, secure installation into hammer drills. Built from industrial-grade heat-treated steel, this adapter offers exceptional durability, resistance to twisting, and long-lasting performance under demanding conditions. Whether you're coring through reinforced concrete, brick, stone, or block, this adapter provides solid torque transfer and minimal vibration for more accurate, cleaner holes. Perfect for contractors, plumbers, electricians, and heavy-duty DIY users, the HBKEEN SDS Plus core bit adapter turns your rotary hammer into a versatile coring machine — saving time, reducing tool wear, and ensuring a secure, stable drilling experience. Key Features: Core Drill Bit Adapter 1-1/4"-7 to SDS Plus – Connects diamond core drill bits with 1-1/4"-7 thread to SDS Plus rotary hammer drills Durable Industrial-Grade Steel – Heat-treated for long service life and high torque performance Precision Machined Threads – Ensures a tight fit, reduces wobble, and provides smooth power transfer Universal Compatibility – Ideal for wet or dry core bits, perfect for concrete, brick, masonry, granite, and more Time-Saving Design – Quick and secure installation without additional tools; built for demanding job sites

• Perfect Compatibility: This Core Drill Bit Adapter features a 1-1/4"-7 male thread and SDS Plus shank. Designed exclusively for SDS Plus rotary drills. please verify your drill type before purchasing.
• Product size: This Core Drill Bit Adapter features a 1-1/4"-7 male thread, 190mm total length, 53mm shank length, and 3.629mm thread pitch. Designed for rotary use only—do not use in hammer-only mode.
• Built to Last: This Core Drill Bit Adapter is precision-machined from high-quality steel with 1-1/4"-7 threads and an SDS Plus shank for a secure fit. It minimizes wobble and delivers smooth, accurate power transfer during drilling.
• Easy to Use: The Core Drill Bit Adapter allows for quick, hassle-free installation and fast bit changes on the job. Secure fit saves time—ideal for contractors, electricians, plumbers, and DIY users.
• STRONG COMPATIBILITY: Works with 1-1/4"-7 diamond core bits for clean, accurate drilling in masonry, concrete, tile, stone, and block. Ideal for both DIY and professional use.