Specifications Name: hole opener set Material: alloy Features: high hardness, accurate positioning, good chip removal, high efficiency Scope of application: suitable for processing materials aluminum alloy, thick cast iron, stainless steel, mold steel, various types of wood, etc. Description Carbide-Tipped Hole Cutte for Metal: The carbide-tipped hole saw kit delivers precise results for metal, stainless steel, iron, cast iron, wood, and plastic. Its heavy duty construction supports consistent performance when drilling through hard metals or general sheet materials. Tungsten Carbide Teeth: Equipped with tungsten carbide tipped cutte and titanium-plated, this hole saw set provides enhanced hardness and wear resistance. The sturdy structure ensures long-term use even under tough industrial conditions. Application Compatibility: This hole cutte set is compatible with bench drills, magnetic drills, percussion drills, and more. It is suitable for use on stainless steel plates, square tubes, and offering flexibility in both professional and DIY projects. Unique Triple Blades Design: Featuring a three-blades structureouter, middle, and inner bladesthe metal hole saw achieves smoother, sharper, and more efficient cutting. This design supports clean holes in tough materials and improves overall drilling efficiency. Package 1PCS*Carbide-Tipped Hole Cutte Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.