Key features - Size range: drill bits from 2 mm to 11.5 mm, with a 3.5 mm size included in the set for precision work - Shaft length: 100 mm long, providing good reach and stability for a variety of drilling tasks - Quantity: 1 piece per package, convenient for adding to your toolbox - Material versatility: suitable for drilling in a variety of materials, enabling versatility across projects - Precision performance: 3.5 mm diameter is ideal for precise drilling and accurate hole placement Why you need this - Reliable precision: the dedicated 3.5 mm size supports accurate pilot holes and cleaner results in tight tolerances - Broad compatibility: designed to work across common material types encountered in home, workshop, and professional settings - Practical reach: 100 mm length offers ample access for drilling in deeper workpieces or through panels Use scenarios - Electronics mounting: drill precise 3.5 mm pilot holes for hardware or fasteners in enclosures or control panels - Woodworking: start clean pilot holes for dowels or hardware fits in cabinetmaking or furniture assembly - General maintenance: create consistent holes through metal, plastic, or wood components during repairs or upgrades Note: This description reflects the specified range (2 mm to 11.5 mm with 3.5 mm in the set), 100 mm length, and 1 piece per package, suitable for drilling a variety of materials with a focus on precision.