SDS-PLUS with 5/8"-11 thread - High hardness 40 - Chrome-plated drill bit adapter - Extension rod - Water adapter for core drills for power tools

Reliable Material: This drill bit adapter is made of 40 chromium and offers balanced hardness and toughness to withstand mechanical stress during regular drilling while ensuring a stable structure. Water Injection for Dust Control: The water adapter for core drilling transforms your electric/hammer drill into a wet core drill. It effectively suppresses dust, cools the drill bit, and extends tool life, making it ideal for long and continuous use. Comfortable Ergonomic Handle: The ergonomic handle reduces hand fatigue. It allows for even feeding during drilling, ensuring controlled and precise work, even during extended use. Three Adapter Types Available: Three core drill bit adapters are available: external thread on a hex shank, 1-1/4"-7 external thread on an SDS Plus shank, and 1-1/4"-7 external thread on an SDS Max shank. Combine different power tools to expand your drilling applications and simplify tool changes. Five extension rod options: Five core drill extension rods are included: SDS-PLUS with 1-1/4"-7UNC thread, SDS-MAX with 1-1/4"-7UNC thread, hex shank with 1-1/4"-7UNC thread, SDS-PLUS with 5/8"-11 thread, and SDS-PLUS with 5/8"-11 thread. This allows you to meet the requirements of shallow to deep holes and handle most drilling conditions in concrete, brick walls, and other materials.