Irwin Speedbor 5/8 In. x 6 In. Quick Change Auger Bit Brand_Various No other cartridges are certified

No other cartridges are certified to be fitted with this mask

36 grit type 29

Large 3-1/4" Burner For Even Heat Distribution

1/4" Quick Change range now holds insert bits

38mm) a36r-bf type 1 steel cutting wheel with 1" (25

Irwin Speedbor 5/8 In. x 6 In. Quick Change Auger Bit Brand_Various No other cartridges are certifiedSpeedbor 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.