Drillco® Nitro Heavy-Duty Jobber Length Drill Bit Set, 29 Pieces, High Speed Steel Replacement Blade For use with impact and

For use with impact and chrome sockets

Bi-metal construction with 8% cobalt for increased wear resistance

glass and plastics such as acrylics

single cut both sides

90° vertical indexing

Drillco® Nitro Heavy-Duty Jobber Length Drill Bit Set, 29 Pieces, High Speed Steel Replacement Blade For use with impact andManufactured from a premium grade of M 7N molybdenum high speed steel The Nitro Heavy Duty 135 Split Point Drill with a Nitride surface treatment that gives a hard protective layer to the drill (increases hardness without increasing brittleness) which is measurably harder than high speed steel Body and clearance are gold and black surface treated for maximum lubricity Recommended for use in stainless steel and other hard metal drilling Specifications