3PC VARI BIT STEP DRILL BIT KIT 1/8" 1/2" 1/4" - Modern Electrical Supplies Ltd Drills from 1/4 to 1-3/8 with 3/16 interval. Quadruple Flutes: Clean and smooth cutting experience for consistent results. A true one-for-all solution for drilling holes on plates. Step Drill Bit Home Depot Irwin - Drill Bit Set: Step Drill Bits Metal Hole Saw Drill Hog USA 1/4 to 1-3/8 Cobalt M42 Step Drill Bit Set Spiral Flute Specifications: 1/4 to 1-3/8 Spiral Flute Step Bit (10 Steps) Steps: 1/4... Reminder: Suitable for metal sheet up to 1/8 (3 mm) thick and stainless steel sheet up to 1 mm thick. 1/4 - 1-3/8 Step Drill bits Step Drill 1/4-1-3/8 Cobalt coating high speed steel Reamer Drill Bits Wear protection at all time and ensure sufficient lubrication and cooling for optimal result.
