IS Drilling
Freer Tool & Supply’s IS drilling collection supports accurate, repeatable holemaking for machining, fabrication, and industrial maintenance. The right drilling tools help improve chip evacuation, reduce heat and tool wear, and maintain consistent hole size and finish—whether you’re running CNC production, working in a toolroom, or handling day-to-day shop repairs across steel, aluminum, and other common materials.
Stone Tools ST20ST380 3/16-7/8 Cobalt Step Drill
SKU: FTS-ST20ST380
MPN: ST380
Stone Tools ST20ST381 1/4-7/8-1-1/8 Cobalt Step Drill
SKU: FTS-ST20ST381
MPN: ST381
Stone Tools ST20ST382 1/4-9/16-1 Cobalt Step Drill
SKU: FTS-ST20ST382
MPN: ST382
Stone Tools ST20ST383 1/2-1-1/8-1-3/8 Cobalt Step Drill
SKU: FTS-ST20ST383
MPN: ST383
