Irwin 4935574 Auger Drill Bit, 1-3/8 in Dia, 17 in OAL, Hollow Center Flute, 7/16 in Dia Shank, Hex Shank POWER/PRESSURE WASHERS & ACCES kills worms and caterpillar stage

kills worms and caterpillar stage insects with no harmful effect on birds

6 in Height

Pistol type handle

Standard Series roller chain from Koch Industries is a long life chain that will work with standard sprockets

The polycrystalline diamond (PCD) tips deliver up to 75x the life of a traditional carbide tipped blade

Irwin 4935574 Auger Drill Bit, 1-3/8 in Dia, 17 in OAL, Hollow Center Flute, 7/16 in Dia Shank, Hex Shank POWER/PRESSURE WASHERS & ACCES kills worms and caterpillar stageThe Irwin with WeldTec" ship auger is made stronger and lasts longer than any ship auger in the world. It features a welded cutting edge that easily cuts through tough materials like nail embedded wood. It has twice the nail cutting life of standard ship augers. With an aggressive screw pitch for faster drilling, this bit is fully forged for maximum durability and wide flutes provide maximum chip removal with less binding.