ITEM NAME:10x Spiral Double Edge Ball Head Drill Bit Titanium Plated Milling Cutting Tool Product Description Description: Features: This set of car.Included: 10 X Milling Cutters. Advanced construction tools made of tungsten steel. Material: tungsten steel. Total length: 38mm/1.5". If item is defective after 3 months, you can still send it back to us.