Irwin Speedbor 1-1/2 In. x 6 In. Quick Change Auger Bit Galvanized Pipe Fittings brass-plated body with a lacquer

brass-plated body with a lacquer finish to resist corrosion

Single stage bypass motor

Bass reflex port enhances low-frequency performance

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IC rated for direct contact with insulation

Irwin Speedbor 1-1/2 In. x 6 In. Quick Change Auger Bit Galvanized Pipe Fittings brass-plated body with a lacquerSpeedbor 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.