One Piece SDS-MAX Tunnel Bit, 2-1/8", Carbide Lubrication Parts & Accessories Used for rough grinding on

Used for rough grinding on concrete stone or steel

1/2"-14 NPT

with DIN lengths to allow for longer reach and deeper threading in a single pass

High performance grease for applications with wide temperature ranges

One Piece SDS-MAX Tunnel Bit, 2-1/8", Carbide Lubrication Parts & Accessories Used for rough grinding onIdeal for drilling large holes where the depth of the hole exceeds the practicality of a core bit Chisel and raker teeth are optimized for faster material pulverization SDS Max shank one piece design maximizes energy transfer, while the wide land and substantial core thickness makes these tunnel bits durable even in large hammers The centering tip reduces bit walking for exact spot drilling The three wide flutes create true round holes while ejecting