Irwin 1877240 Speedbor Max Speed Bit Set, Tri-Flute, 5 Pieces Slip Joint Washers / Nuts Thread Size: 7/8–18

Thread Size: 7/8–18

all temperature performance -40 degree F to 240 degree F (-40 degree C to 115 degree C) Installation temperature 40 degree F (5 degree C) and above

38" wood handle with metal reinforcement

Built-in LED filter life indicator

Irwin 1877240 Speedbor Max Speed Bit Set, Tri-Flute, 5 Pieces Slip Joint Washers / Nuts Thread Size: 7/8–18Highlights: Series: MAX Speed Type: Clam Number Of Pieces: 5 Specifications: 4" Hex Shank, Screw Tip Suitable for Use With: 1 4" Quick Change Chucks Includes: 1 2", 5 8", 3 4", 7 8" and 1" Drill Bit Size Range: 1 2" 1" The fastest Speedbor ever Tri flute design for faster chip ejection Cutting spurs have 3 cutting edges for added durability Full screw tip allows bit to self feed Grooved hex shank prevents slipping in drill chuck or bit extension