Sankyo Diamond Concrete Diamond Bit 12.5 AC-125

Dimensions: cutting edge diameter 12.5 mm x total length 90 mm x effective length 55 mm Features Quiet operation is possible as it does not use vibration or impact modes that cause noise and vibration. You can easily drill holes by simply attaching it to your existing tools (such as an impact driver). Drilling holes in edges is possible.Since there is little impact, it is possible to drill holes in edges that are prone to cracking. It is a dry method that does not use water, so there is less mess on site, making it ideal for renovations. Purpose Perforation (for dry type) For anchor holes in concrete (cannot drill into rebar), mortar, block, extruded cement board, brick, and roof tile specification Size (tip diameter x total length x effective length x shaft diameter): 12.5 x 90 x 55 x 6.35 mm Estimated number of holes: Concrete/20 to 50 holes, Mortar/approximately 100 holes *However, the lifespan varies greatly depending on the amount of aggregate. Compatible models: Cordless impact drivers, electric drills, hammer drills (rotation mode), etc. *Product image is for illustration purposes only.