DKIBBITH Dry Diamond Core Drill Bit 1-3/8 Inch for Porcelain Tile

Meet the DKIBBITH Dry Diamond Core Drill Bit, a compact tool engineered for clean, precise holes in tile, stone, and more. The diamond edge cuts with minimal wobble, helping you create faucet mounting holes, countertop cutouts, and other openings with confidence. Designed for dry or wet drilling, it pairs with most tools that accept a 5/8-11 arbor, and the included 3/8 inch hex shank adapter expands compatibility across a broader range of machines. While versatile, this bit is not intended for hammer models or reinforced concrete, so plan your project accordingly.

Product overview

Built around a 1-3/8 inch diameter and a 5/8-11 arbor connection, the DKIBBITH core drill bit is sized for common installation tasks and precise hole creation in countertop fixtures, tile installations, and decorative stonework. The diamond height and overall length are optimized for stable drilling, helping you maintain control and reduce edge chipping as you work through ceramic, porcelain, marble, granite, and similar materials.

Key specifications

• Diameter: 1-3/8 inch (35 mm)
• Connection: 5/8"-11 arbor
• Diamond height: 5/8 inch (15 mm)
• Total length: 2.4 inch (61 mm)
• Max cutting depth: 1-5/8 inch (40 mm)

What you can drill

• Dry or wet drilling through porcelain, tile, granite, marble, stone, masonry, brick, and non-reinforced concrete
• Not recommended for concrete with reinforcement or extremely hard materials

Usage and benefits

• Diamond grain provides fast, smooth drilling with reduced edge chipping
• Ideal for faucet-mount holes in countertops and vanities
• Delivers clean rounded corners for square or rectangular sink holes
• Includes a 3/8" hex shank adapter for hex-shank machines; compatible with 5/8"-11 arbors on many grinders
• Suitable for both dry and wet drilling depending on material and setup

Practical usage tips: use appropriate lubrication for wet drilling on dense materials, apply steady pressure, and avoid hammer mode on compatible tools. Check arbor compatibility before use, and keep the adapter in a safe place when transitioning between machines.

In real-world projects, this bit shines when you need precise, round openings without heavy finishing work. Think kitchen renovations, bathroom upgrades, or backsplash installations where clean edges matter. The design emphasizes control and reliability, offering a versatile option for woodworkers, tilers, and remodelers alike. The included hex shank adapter broadens compatibility, making it easier to find a drill that suits your workflow while maintaining the strong performance you expect from a diamond core bit.