About this item COMPLETE KIT: Professional glass cutting tool set includes pencil Style glass cutter × 1 , professional size cutter head × 3, screwdriver for replacement cutter head × 1, tungsten carbide tip scriber × 1 , dropper × 1,Steel Ruler × 1,to meet your various needs when cutting. HEAVY DUTY HEADS: Industrial grade frosted iron head, wheels are made of durable tungsten carbide, cutting life is more than 20000 meters, up to 30 times longer than other tools! Universal cutter head – suitable for 3mm-14mm thick glass ERGONOMIC DESIGN: Textured non-slip grip handle with brass accents ensures comfortable and precise control during cutting PRECISION CUTTING: Steel cutting wheels deliver clean, accurate cuts on glass surfaces with minimal pressure required MAINTENANCE FRIENDLY: Includes specialized glass cutting oil and applicator to ensure smooth operation and extend tool life PERFECT FOR CUTTING GLASS Including Cutting Mirrors, Windows, Glass Shelves, Stained Glass, and More!Features automatic oil dispensing system keep the wheel lurbricated everytime you cutting.