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Milled Flutes and Welded Tip
SDS Max Shank
1.Tunnel Bits are ideal for drilling deep, large holes in brick, block, and concrete with SDS Max rotary hammers.
Idea for drilling large holes where the depth of the hole exceeds the practicality of a core bit.
2.Premium carbon steel with heat treatment improves core strength for maximum durability and extended life.
3.Fast penetration rate thanks to chisel-shaped carbide teeth.
4.Wide land and substantial core thickness makes bits durable even in large hammers.
5.Centering tip reduces bit walking for exact spot drilling.
6.Three wide flute ejects debris fast.
7.Compatible with all SDS-Max style chucks.
* Other Sizes are available,Concact Us to Learn More.
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