Triple Ripple Diamond Drill Bit 1.8mm

• Sold individually.
• Shank is 1.2mm.
• The Triple-Ripple Diamond Drill has 3 flutes so cutting will flush away. 
• These flutes decrease frontal contact and drag. 
• As the edges wear away, fresh diamond in the flutes maintain the cutting action. 
• This bit is used in our Drilling Stones and Found Objects with Kate Richbourg.