Alpha Core Bit Extender 4" 5/8-11 for Stone Drill Bits

Alpha® now offers a Spindle Extender which allows you to drill hollow concrete blocks from one side for both walls. The Extender can be used any tool with a 5/8”-11 spindle and is available in 4”. It is also a great solution for polishing and grinding in difficult spaces.

Features

• Works with Any 5/8”-11 Polisher/Grinder
• Extend Reach In Hard To Access Areas
• Effortlessly Switch Between Accessories And Sizes
• Built-in Center Water Passage Delivers Water Directly to the Polishing Surface
• Made With High Strength Steel
• Perfect For Thick Materials Such As Cutting Through Concrete, Brick, Pavers, Stone, And More
• Compatible With Diamond-Tipped Core Bits For Dry Coring To Extend The Reach
• Spindle Extensions Can Be Combined to Achieve Desired Lengths