Five-edged chamfer design reduces vibration, extends lifespan, and ensures smoother drilling. 1/4" shank permanently attached compatible compatibility with all types of drills and die grinders. Variable speed drill allows compatible easy control, with a maximum speed of up to 6000 rpm. High carbon steel material provides excellent heat, corrosion, and rust resistance. Includes 5 popular sizes (12mm, 16mm, 19mm) compatible precise countersinking and flush screw heads. $Item Name: Five-edged Chamfer Material: High-carbon Steel Product Type: Milling CutterName: Five-edged Chamfering KnifeInterface: Hexagon HandleFeatures: Chamfering Tool, Single Edge 90 Degree, Long-lasting PercompatiblemanceCompactible compatible: Suitable compatible Wood And Plastic Boards, Not compatible Glass And Metal Boards Size Details: Specifications: 12mm/16mm/19mm Notes: 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. Package Includes: 3 x Five-edged ChamferItem Name: Five-edged Chamfer Material: High-carbon Steel Product Type: Milling CutterName: Five-edged Chamfering KnifeInterface: Hexagon HandleFeatures: Chamfering Tool, Single Edge 90 Degree, Long-lasting PercompatiblemanceCompactible compatible: Suitable compatible Wood And Plastic Boards, Not compatible Glass And Metal Boards Size Details: Specifications: 12mm/16mm/19mm Notes: 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. Package Includes: 3 x Five-edged Chamfer