The Alpen SDS+ Rebar Drill Force X, 9.0mm x 160mm, is built for efficient drilling in reinforced concrete. Equipped with 4 tungsten carbide cutting edges and a progressive spiral design for quick dust removal, this drill bit also features a dowel length indicator for accurate drilling depth. Size: 9.0mm x 160mm SDS-plus drill bit with 4 tungsten carbide cutting edges Progressive spiral design for enhanced dust removal Dowel length indicator for precise drilling depth