Walmeck 3Pcs 4-32MM HSS Stepped Drill Bit Set High-speed Steel Spiral for Metal Cone Triangle Shank Hole

The 3pcs 4-32mm HSS drill bits are triangle round handle step design used for cutting metal board and wood plate thickness in 4mm. Features: Specifical step design one drill for many sizes very convenient. Triangle round handle. No need for a pilot hole. High speed steel durable to use. Used for iron sheet aluminum insulation board PVC plate wood thickness in 4mm. Specifications: Material: High-speed steel Color: Black Size: 4-12mm 4-20mm 4-32mm Package Weight: 234g / 8 25ounces Package Size: 100 * 60 * 30mm / 3.94 * 2.36 * 1.18in Packing List: 1 * 4-12mm Drill 1 * 4-20mm Drill 1 * 4-32mm Drill