Irwin Speedbor 6 In. Quick Change Auger Bit Gray Metal UL (Underwriter's Laboratories) listed and

UL (Underwriter's Laboratories) listed and CSA (Canadian Standards Association) approved

septic systems

NPT threaded female union inlet by NPT female outlet and a bypass feature to control thermal expansion pressure

rockiest soil

hot or cold

Irwin Speedbor 6 In. Quick Change Auger Bit Gray Metal UL (Underwriter's Laboratories) listed andSpeedbor MAX is the fastest Speedbor. Tri flute design for faster chip ejection. There are 3 cutting edges for added durability and the full screw tip allows the bit to self feed for easier pull through. 1 4' quick change hex shank prevents slipping in drill chucks and bit extensions. Fits all standard quick change chucks and adapters.