Feature: 1. Expanded Compatibility: Seamlessly adapts from 1 1/4in UNC male threads to round shanks, enabling easy connection of coring drill bits for efficient drilling performance. 2. Enhanced Structure: Constructed from carbon steel, this coring drill bit adapter offers durability and long-lasting performance, suitable for demanding drilling applications. 3. User-Friendly Design: The adapter simplifies the drilling process with an intuitive design that allows for quick and secure connections, ensuring smooth and efficient operation. 4. Secure Connection: Provides a stable and reliable connection, enhancing safety and confidence during drilling tasks. 5. Optimized for Performance: Designed specifically for rotary mode use, this adapter helps protect tools and materials by avoiding hammer mode operation. Specification: Item Type: 1 1/4in UNC to Round Shank Coring Drill Bit Adapter Material: Carbon Steel Shank Type: Round Shank Thread Size: 1 1/4in UNC Male Thread Package List: 1 x Coring Drill Bit Adapter