Alpha® now offers a Core Bit Extender which allows you to drill hollow concrete blocks from one side for both walls. The Extender can be used on hammer drills and rotary hammers. The Extender, with 5/8”-11 female thread, is available with an SDS Plus or ½” Hex Shank and comes in lengths of 6” or 10”. A pilot carbide drill bit guides to the right spot without slipping on the surface.Features & Benefits Convert Your Rotary/Hammer Drill With The SDS-Plus Fitting Into A Core Drill With A 5/8"-11 Thread Extend Reach In Hard To Access Areas Effortlessly Switch Between Accessories And Sizes 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 *Must Be Used Without Percussion of Rotary Hammer/Hammer Drill SKU Diameter Type Threads CBEHEXS 6" (150mm) 1/2" Hex Shank Short 5/8" - 11 CBEHEXL 10" (250mm) 1/2" Hex Shank Long 5/8" - 11 CBESDSL 10" (250mm) SDS Plus Shank Long 5/8" - 11 CBESDSS 6" (150mm) SDS Plus Shank Short 5/8" - 11
