Features DURABLE CARBIDE TECHNOLOGY: Using carbide technology, optimized tooth geometry enables hole saws to provide excellent service life and fast cuts in the most demanding applications EXCELLENT PERFORMANCE: Center positioning with 130 degree drill tip design, possess strong wear resistance, bring sharper cutting SIMPLE OPERATION WITH FAST PUNCHING: Thin wall core bit support simple operation, easy to use, come with fast punching speed, provide great convenience WIDELY USES: This cement brick electric hammer drill is widely used for cutting clean holes in concrete, brick work, drilling wall, stones, installing air conditioners, etc. FOR MASONRY BRICK BLOCK CORE REMOVAL: This thin wall core bit can realize core removal of masonry, brick, and block, useful and practical Specification: Item Type: Thin Wall Core Bit Material: Carbide Color: Silver Specifications: Approx. 35mm / 1.38in Wide Application: This cement brick electric hammer drill is widely used for cutting clean holes in concrete, brick work, drilling wall, stones, installing air conditioners, etc. Package List: 1 x Thin Wall Core Bit Package List 1 x Thin Wall Core Bit