Best Cast Iron Hole Saws for Clean, Accurate Metal Cutting
The best cast iron hole saw for a project depends on the hole diameter and whether you need one cutter or a range of sizes. These five tungsten carbide-tipped (TCT) options are listed for metal, iron, or hard-metal cutting. The METOTY and ASNOMY kits suit buyers who need multiple diameters, while the SALI, dashap, and 1-5/8-inch cutters target specific hole sizes. Check the tool’s cutting depth and your drill setup before choosing.
| Product | Best for | Cutting diameter |
|---|---|---|
| METOTY 19-piece kit | Broad size selection | 1/2 to 2-1/8 inches |
| SALI TCT hole saw | A single 1-inch-class hole | 26 mm |
| dashap TCT hole saw | A 2-inch hole | 2 inches |
| 1-5/8-inch TCT hole saw | A specific mid-size hole | 1-5/8 inches |
| ASNOMY 12-piece kit | Common metal-hole sizes | 5/8 to 2-1/8 inches |
METOTY 19-Piece Carbide Hole Saw Kit
Best for: Buyers who need several hole sizes for metal or iron work. The kit includes 13 hole saws from 1/2 inch through 2-1/8 inches, three titanium-plated pilot drills, and three L-wrenches. Its tungsten carbide-tipped teeth are described as impact- and wear-resistant, and the product is listed for stainless steel, iron, and aluminum.
The wide diameter range makes this a flexible choice when a project may require different hole sizes. Choose it if you want the pilot drills and wrenches included with the cutters. The listing does not specify a cutting depth, so confirm that the saw’s capacity suits the material thickness before buying.
SALI 26 mm TCT Hole Saw
Best for: A buyer who needs one hole close to 1 inch in diameter. This SALI cutter measures 26 mm and includes a titanium-plated pilot drill. Its three-blade tooth design has outer, middle, and inner blades, and the listing identifies it for hard metal, stainless steel, iron, wood, and plastic.
The product description reports a 1-inch cutting depth and an 8 mm shank diameter. Choose this single-size cutter when its diameter matches the job, rather than paying for a kit of sizes you may not need. Its fixed 26 mm size is a limitation if the required hole is substantially larger or smaller.
dashap 2-Inch TCT Hole Saw
Best for: A project calling for a 2-inch hole. The package includes one TCT carbide hole saw, a hex key, and a storage box. The listing names hard metal, alloy, aluminum, stainless steel, plastic, and iron as intended materials. It also describes the cutter as having a tipped tooth blade and being suitable for several types of drills.
This is a more direct choice than a multi-size kit when a single 2-inch cutter is the priority. The package contains only one hole saw, so it is less suitable when you need multiple diameters. The listing does not provide a cutting-depth measurement; check that detail against the thickness of the workpiece.
1-5/8-Inch Carbide-Tipped Hole Saw
Best for: Buyers who need a 1-5/8-inch hole and prefer a cutter sold with spare pilot drills. The product name specifies a tungsten carbide-tipped hole saw and includes two titanium-plated pilot drill bits. It is listed for hard metal, stainless steel, iron, aluminum alloy, wood, and plastic.
This option is better suited to a defined mid-size hole than to projects requiring several diameters. The supplied information does not state cutting depth, shank diameter, or other technical dimensions beyond the cutting diameter. Verify those specifications with the seller if they are essential to your setup.
ASNOMY 12-Piece TCT Hole Saw Kit
Best for: Buyers seeking multiple common sizes for hard metal. The listed cutting diameters range from 5/8 inch to 2-1/8 inches and include sizes such as 3/4, 1, 1-1/4, 1-3/4, and 2 inches. The kit uses TCT cutters and a titanium-plated M2 steel pilot drill bit, with a three-blade tooth design.
The listing gives a 1-inch cutting length and a 10 mm shank diameter. Choose this kit if its included sizes cover your planned holes and you want a smaller stated range than the METOTY set. It starts at 5/8 inch, so it does not cover the smaller 1/2-inch size included in that alternative.
Buying Guide: How to Choose a Cast Iron Hole Saw
What diameter do you need?
Measure the required hole before comparing cutters. A single-size saw can be a practical match for a repeated or specific hole, while a kit offers more flexibility for varied work. Compare the listed diameter directly: 26 mm is close to, but not exactly, 1 inch, and a 1-5/8-inch cutter serves a different opening size from a 2-inch model.
Is the cutter listed for cast iron?
Look for explicit references to iron or hard metal in the product details. The products here use tungsten carbide-tipped teeth, but their listings vary in the materials they name. Confirm that the exact material and thickness you plan to cut are appropriate for the selected saw; do not assume that a listing for one metal establishes suitability for every metal.
Should you choose a kit or a single saw?
Choose a kit when the job calls for multiple hole sizes or when included pilot drills and accessories are useful. A single cutter may be a better fit when the required diameter is known and you do not need extra sizes. Compare kit contents carefully: the METOTY kit lists 13 saws and additional accessories, while the ASNOMY kit lists multiple diameters and a pilot drill.
Which specifications should you verify?
Check cutting depth, shank diameter, drill compatibility, and included pilot drills before purchase. These details affect whether the tool suits the workpiece and drill arrangement. Product information is not equally complete across these listings, so ask the seller or consult the full product specifications when a dimension is missing. For the dashap saw, for example, the supplied details do not state cutting depth.
What safety steps matter?
Follow the tool’s instructions and use appropriate eye and hand protection. The dashap listing specifically advises wearing protective goggles and gloves. Secure the workpiece and use a drill setup appropriate for the cutter and material; stop if the saw binds or the setup becomes unstable.
Frequently Asked Questions
Can a TCT hole saw cut cast iron?
Several products in this list are described for iron or hard metal and use tungsten carbide-tipped teeth. Check the individual listing for the material and thickness you need to cut before selecting a saw.
What size hole saw should I use for a 2-inch opening?
Choose a cutter with a 2-inch cutting diameter, such as the listed dashap saw. Confirm the required opening measurement and the saw’s specifications before use.
Is a hole saw kit better than a single cutter?
A kit is better when you need several diameters. A single cutter is often the more direct choice when the project requires one specific hole size.
Why does cutting depth matter?
Cutting depth helps determine whether a saw can pass through the workpiece thickness. Compare the stated depth with the material and verify it when the listing does not provide that measurement.
Do these products include pilot drills?
Several listings specify included pilot drills, but the quantity varies. Check each product’s package contents because not every listed cutter provides the same accessories.