Answering buyers seeking a 1 5/8 inch diamond hole saw: these tools deliver precise, clean holes in tile, porcelain, granite, marble, and similar materials. This guide selects five reliable options and explains who each is best for, plus practical trade-offs. Ideal buyers include DIY remodelers, tile installers, and homeowners tackling countertops, sinks, or decorative projects. The products below are evaluated for cutting depth, pilot guidance, durability, and water cooling compatibility.
| Product | Best For | Cutting Diameter | Depth | Notes |
|---|---|---|---|---|
| DaduoRi 1 5/8″ Diamond Hole Saw | Porcelain tile, granite, marble | 1.625″ | 1.25″ (approx) | Pilot bit for accuracy; water cooling-friendly |
| Luomorgo 42mm Diamond Hole Saw | Glass, ceramic tile, porcelain, granite | 1.65″ | 1.14″ (29mm) | Nickel-plated for corrosion resistance |
| TurstAid Diamond Hole Saw 1-5/8″ | Porcelain, glass, ceramic | 1.625″ | Not stated | Pilot center drill bit; carbide-like durability |
| MOLLOM 1-5/8″ Diamond Hole Saw | Porcelain, ceramic, marble | 1.625″ | 1.5″ (approx) | Two pilot bits included |
| Mollom 1-5/8″ Diamond Hole Saw | Tile, granite, ceramic | 1.625″ | ~1.56″ (40mm) | High-quality brazed diamond grain |
DaduoRi 1 5/8″ Diamond Hole Saw with Pilot Bit

Features include a 42mm diamond cutting edge, a pilot bit for precise alignment, and compatibility with tiles, porcelain, granite, marble, glass, and stone. This hole saw is designed for long-lasting use and water-assisted cooling, which helps manage heat and chip removal. Best for: DIY tile projects and light commercial work where straightforward accuracy is key. Limitation: performance depends on consistent lubrication and correct alignment; improper seating may cause slipping.
Luomorgo 42mm Diamond Hole Saw

This 42mm cutter provides a 1.65″ drilling diameter and a depth of about 1.14″ (29mm). The tool uses a sturdy iron alloy body with nickel plating to resist rust and corrosion, offering durability in damp workshop conditions. Best for: projects needing a thinner-depth hole through glass, ceramic, or light stone. Caution: ensure adequate water cooling to prevent premature bit wear and maintain steady motion during cutting.
TurstAid Diamond Hole Saw 1-5/8 Inch

Industrial-grade carbon steel with diamond grit and brazing technology delivers solid cutting performance. It includes a pilot center drill bit to prevent slipping and to improve hole accuracy on tiles, porcelain, glass, and stone. Best for: precise, straight holes in ceramic and porcelain surfaces. Limitation: larger diameters can be slower to drill through very dense stone; maintain steady pressure for clean cuts.
MOLLOM 1-5/8″ Diamond Hole Saw

Cutting Dia: 41mm (1-5/8″), Depth: 40mm (~1-9/16″). High-quality diamond brazing delivers fast, smooth drilling with longer tool life. Includes two pilot bits for easy start and stable cutting. Best for: tile and granite installations where a reliable pilot guidance is beneficial. Caution: deeper holes can require careful handling to avoid tilting; use steady, perpendicular motion to maintain round holes.
DKIBBITH 1-3/8″ Diamond Hole Saw (Related Size)

Note: This option is 1-3/8 inch, a nearby size often used for similar projects. It features a guiding pilot bit and a diamond-tipped edge for precision. Best for: projects requiring slightly smaller holes than 1 5/8″, such as faucet or fixture installations. Choose this if you specifically need a more compact diameter, but avoid this if you must exceed 1 3/8″ tolerance.
Buying Guide: Key Considerations for 1 5/8 Inch Diamond Hole Saws
- Material compatibility: Confirm whether the target materials include ceramic tile, porcelain, granite, marble, or glass. Some bits are optimized for glass or ceramic, while others excel with stone.
- Depth requirements: Check the hole saw depth to ensure it meets your project needs. Deeper cuts may require multiple passes or specialized variants.
- Pilot guidance: A pilot drill bit improves accuracy and reduces wandering. Decide if you prefer a fixed pilot or a double-pilot design for stability.
- Cooling and lubrication: Water cooling helps control heat and chip removal. Tools designed for splash-free wet drilling can simplify operation in enclosed spaces.
- Durability and construction: Diamond grit quality, brazing technique, and body material affect longevity under dense materials like granite or porcelain.
- Ease of use: Tools with two removable pilot bits or simple starter guides help beginners achieve cleaner holes with less effort.
- Avatar of best use: Best for counter sinks, sinks, faucets, or tile patterns—consider whether you need a shallow or deeper hole and the precise diameter when selecting.
Frequently Asked Questions
- What is the standard diameter for a 1 5/8 inch hole saw?
– The standard cutting diameter is 1.625 inches, matching the 1 5/8 inch specification. - Do I need a pilot bit with a diamond hole saw?
– Yes. A pilot bit improves accuracy and reduces the chance of the bit slipping on hard materials. - Is water cooling necessary for all diamond hole saws?
– Water cooling is recommended for many hard materials to manage heat and extend tool life, though some dry-cut designs exist. - Can these hole saws cut through glass?
– Some models are designed for glass and ceramics, often with specialized tip geometry or coatings; verify product specs for glass suitability. - Which material is best for these hole saws?
– Porcelain tile, granite, marble, ceramic, and glass are common targets; choose the model rated for your primary material for best results. - What should I avoid when drilling with these hole saws?
– Avoid applying excessive force, overheating, or misalignment, which can cause chipping, wandering, or premature wear.