KitchenLibrary

35mm Diamond Drill Bit — Hex Shank

$65.00

A precision diamond-tipped drill bit engineered for clean, controlled penetration through ultra-hard surfaces without cracking or chipping.

Constructed with a diamond-bonded tip and a standard hex shank for tool-free chuck compatibility, this bit is built for demanding applications where standard bits fail. The 35mm diameter is purpose-sized for sink and benchtop tap hole installations, and the continuous-use design maintains cutting efficiency across repeated cycles. Recommended for use with variable-speed drills at 1750–2000 RPM for optimal results.

Product Details

  • Diameter: 35mm
  • Shank: Standard hex fit (quick-change compatible)
  • Tip: Diamond-bonded for hard material cutting
  • Recommended speed: 1750–2000 RPM
  • Weight: 50g
  • Suitable for ceramic, stone, quartz, and engineered surfaces

Best For

Designed for drilling tap holes in Platinum Quartz sinks and Evostone benchtops where standard HSS or carbide bits are unsuitable. Ideal for kitchen and laundry installations requiring a clean 35mm aperture through extremely hard composite or stone surfaces. A necessary tool for professional installers working with premium sink and benchtop materials.