Free Shipping On Orders Above $199 in the Continental USA*

35mm Ultra Thin (1mm) Hole Bit For Ceramics & Glass

The Calidad 35mm Ultra Thin Hole Bit is the ultimate solution for precision drilling in delicate and hard materials. Designed for wet use only, this tool tackles the challenges of working with ceramics, optical glass, and sheet glass, offering a longer lifespan and faster drilling speeds on sensitive surfaces without compromising the finish.
Save to wishlist
  • Description
  • Applications
  • Use-Cases
  • Tech Specs

A versatile, ultra-thin hole bit for precision drilling on delicate, hard materials such as ceramics, optical and sheet glass

Tile, ceramic, and glass drill bits with ultra-thin walls (1mm) deliver a 2x longer life span and faster drilling speed on delicate surfaces. 

The key feature of these drill bits is their innovative electroplated diamond core, which is significantly thinner compared to other core drills available in the market. This slender wall design not only facilitates more precise cuts but also ensures a superior surface finish with minimal chipping. They are perfectly suited for working with a variety of delicate, hard materials, including optical glass, glass tiles, sheet glass, thin glass, and even slender stone slices.

Disclaimer: This bit is designed for Wet Use Only. Please ensure you do not force the bit down too hard as it may break - let it work with adequate pressure.

Glass Tile

Sheet Glass 

Thin Glass

Thin Stone Slice

Installation of Larger Fixtures in Glass Tiles: Perfectly sized for drilling holes for larger bathroom and kitchen fixtures in glass tiles, ensuring a clean, precise fit without cracking or chipping the material.


Drilling Through Sheet Glass for Architectural Applications: Ideal for creating holes needed for architectural elements, such as supports, connectors, or decorative hardware in sheet glass, where precision and a smooth finish are crucial.


Creating Access Points in Optical Glass: Suitable for larger optical components where precision holes are required for mounting or assembly purposes, maintaining the integrity of the optical glass.


Larger Decorative Features in Thin Stone and Glass: Allows for the installation of decorative or functional elements in thin stone slabs or glass, providing the necessary precision for clean, aesthetic finishes without damaging the delicate materials.

  • Hole Dimension: 35mm (1 3/8")

  • Wall Thickness: Ultra-thin 1mm for precision cutting

  • Material: Vacuum Brazed Diamond Technology for durability and speed

  • Recommended RPM: 3,500 - 4,500 for optimal performance

  • Usage: Wet use only - with lateral opening for improved cooling

  • Additional Features: Diamond coating for enhanced drilling speed, depth marks for precision, and includes a portable plastic storage case

  • Durability: Reinforced for maximum durability and precision ground carbide for clean holes