NORTOOLS Diamond Hole Saw Set – 9pcs Carbide Grit Edged Holesaws for Tile, Stone & Ceramic Drilling

Overview

The NORTOOLS Diamond Hole Saw Set is a 9-piece kit designed for drilling clean, precise holes in ceramic tiles, porcelain, marble, granite and other stone materials. Built on premium brazed diamond technology and a robust steel body, it aims to deliver durable performance with smooth edges and minimal chipping. The set covers a range of common hole sizes, supported by two mandrels and a hex key, all housed in a blow-moulded case for ease of transport and storage.

What it’s for

If you regularly drill through tiles or stone, this set targets the need for accurate, clean-cut holes suitable for fittings, fasteners or conduit. The thickened tungsten carbide coating and reinforced diamond layer are intended to reduce edge cracking and produce flat-bottomed holes, which can save time during finishing and patching.

How it performs

On paper, the brazed diamond technology should offer strong cutting performance while resisting corrosion. The kit features a 25mm cutting depth and a range of hole diameters (22, 28, 35, 44, 68, 73 mm), plus two mandrels that fit the respective sizes. The design supports both wet and dry drilling. For longer life, water or coolant is still recommended, even though dry drilling is possible in some circumstances.

What stands out

• A broad size spread within a single kit, covering common tile and stone applications.
• Reinforced diamond edge aims to deliver razor-sharp edges and cleaner holes without cracking or chipping.
• Dual-usage capability (wet and dry drilling) adds flexibility for different work scenarios.
• Complete kit includes mandrels, hex key and a carry case, which helps keep accessories organised.

Limitations to consider

• The kit suggests adding water or coolant to extend tool life, so users who expect truly maintenance-free dry operation may need to adjust expectations.
• While designed for tough materials, performance can still depend on drilling technique, material composition and drill speed. If you encounter very hard substrates or thick porcelain, results may vary compared with more industrial-grade systems.
• Depth is limited to 25mm, which may not suit all installation needs or hole depth requirements.

Who it’s for

This set suits DIYers and tradespeople who regularly work with ceramic tiles, porcelain, granite, marble or terrazzo and want a compact, ready-to-use kit. It’s especially practical for bathroom or kitchen tiling tasks where neat, accurate hole cuts are essential for fixtures and fittings.

When it makes sense to buy

• You need multiple hole sizes from 22 to 73 mm in one compact kit.
• You value a robust edge that minimises chipping on tile and stone.
• You want a system that can be used with or without water, depending on the job and setup.

When you might skip it

• If you require deeper holes beyond 25 mm, this set may fall short.
• If you frequently cut through extremely hard stone or very thick porcelain, you may look for a system with higher depth ratings or more aggressive cutting geometry.

What to check before buying

• Confirm the hole size requirements for your project and ensure the diameters included match those needs.
• Consider whether you’ll predominantly drill dry or wet, although dry drilling is possible, longevity benefits from coolant.
• Inspect the included mandrels and hex key to ensure compatibility with your current drill chuck and setup.

Practical use example

Imagine tiling a kitchen backsplash and needing a 28 mm hole for a faucet connection. Clamp a steady guide, start with a slow ramp and occasional light coolant, and you’ll likely see a clean, flat-bottomed cut without revealing chips around the edge. The 25 mm depth should be adequate for typical splashback installations, reducing post-cut trimming.

FAQ (based on available details)

• Can I drill dry with these holesaws? Yes, they’re designed for dry drilling, but water or coolant is recommended to extend life.
• What materials can I cut with this set? Tiles, ceramics, glass, marble, granite and terrazzo are listed as suitable.
• What’s included in the box? Hole saws in 22, 28, 35, 44, 68, 73 mm, two mandrels for specific sizes, a hex key and a blow-moulded case.

Final decision

Is it worth it? Worth considering if you need a versatile, mid-range hole saw set tailored for tile and stone work, with a comprehensive size range and a durable edge. It’s a sensible balance of practicality and durability for everyday tiling tasks. If your projects demand deeper or more aggressive cuts, you might explore options with greater depth or harder material coatings.