50PCS, HSS Twist Drill Bit with Straight Shank and Split-point Tip for Metal Working, 10 Pieces in a PVC packet:1/16" (10pcs), 5/64"(10pcs), 3/32"(10pcs),7/64"(10pcs),1/8"(10pcs) * High Quality Material- High Speed Steel. * Drills clean, accurate holes in these thin materials: sheet metal, ducts, steel, copper, brass, aluminum, plastic, Plexi glass, wood, veneers, vinyl siding, plasterboard, PVC, stainless steel and cast iron. * Ideal for drilling in tough metal, including heavy-duty abrasive alloy and hardened steel. * 118-degree split-point tip starts drilling immediately with less force and eliminates walking across the work surface.