Create micro-holes and very fine details with this 0.8 mm Maillefer diamond drill bit, designed for delicate projects.
With a diameter of just 0.8 mm, this drill bit allows you to work on small surfaces while minimizing the amount of material removed. Its diamond-tipped section is suitable for hard materials such as gemstones, glass, and ceramics, making it particularly useful for small pendants and components that require a discreet hole.
Note: When using a diamond drill bit to drill a stone, the stone must be kept submerged in water at all times to prevent it from overheating during drilling. Be careful when drilling: only the diamond drill bit should come into contact with the water. The Dremel tool must not touch the water.
In which jewelry projects should you use it?
Choose this diameter to prepare a hole for a fine wire, a small rod, or a ring with a small cross-section, or to create an initial hole that can then be gradually enlarged with a larger-diameter bit. This approach is particularly useful for fragile materials: starting small allows for better control during drilling. To learn more about this technique, see the guide on how to set components in a gemstone, which demonstrates how to make precise pilot holes before setting components. You’ll also find cooling and drilling instructions in our guide on how to drill a gemstone.
This very fine diameter requires a light touch. Let the diamond do the work rather than applying pressure to the piece, and avoid sudden sideways movements that could weaken the drill bit or the stone. With patience, this method allows you to create particularly discreet attachment points.
Details:
Length: 44.5 mm
Head diameter: 0.8 mm
Shank diameter: 2.3 mm
Sold per 1 piece
