Drillco® Nitro Heavy-Duty Jobber Length Drill Bit Set, 29 Pieces, High Speed Steel Replacement Blade Made from oil resistant non-skid

Made from oil resistant non-skid

single cut both sides

Comes with a 2" arbor hole bushed from 1/2" to 5/8" sizes to fit all brands of bench grinders

90° vertical indexing

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

Drillco® Nitro Heavy-Duty Jobber Length Drill Bit Set, 29 Pieces, High Speed Steel Replacement Blade Made from oil resistant non-skidManufactured 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