Best Steel Hole Saw Bits for Metalworking and Shop Projects
The best steel hole saw bit depends on the metal, hole diameter, and how many sizes you need. For broad size coverage, the METOTY and HIDOTOL carbide kits include cutters from 1/2 to 2-1/8 inches. GSTK and ASNOMY offer compact carbide assortments, while the Klein Tools kit is designed for precise holes in sheet metal up to 3/16 inch thick. The comparison below focuses on stated materials, included sizes, and specific use limits.
| Product | Best for | Key distinction |
|---|---|---|
| METOTY 19-Piece Carbide Kit | Wide diameter selection | 13 cutters and extra pilots |
| GSTK 14-Piece Carbide Kit | Common metal-hole sizes | 12 cutter sizes and replacement pilots |
| ASNOMY 12-Piece Carbide Kit | Hard-metal drilling | Three-blade tooth design |
| HIDOTOL 20-Piece Carbide Kit | Organized, broad-size kit | Includes an aluminum case |
| Klein Tools 31872 | Sheet-metal holes | Cutters for sheet up to 3/16 inch |
METOTY 19-Piece Carbide Hole Saw Kit
The METOTY kit is best for buyers who need many hole diameters in one set. It contains 13 cutters ranging from 1/2 to 2-1/8 inches, three titanium-plated pilot drills, and three L-wrenches. The product description specifies tungsten-carbide-tipped teeth and use on stainless steel, iron, and aluminum.
Choose this kit if size variety and spare pilot drills matter. Its carbide construction is intended for durable cutting, but the listed information does not specify a maximum material thickness. Confirm the cutter’s capacity against the job before drilling.
GSTK 14-Piece Carbide Hole Saw Kit
GSTK is best for buyers who want a range of frequently used metal-hole sizes without the smallest 1/2-inch cutter. Its 12 listed sizes run from 9/16 to 2-1/8 inches, with two extra titanium-plated pilot drills and two L-wrenches. The manufacturer describes the cutters as tungsten-carbide-tipped and intended for metal.
The listed features also say the kit can be used with rechargeable, portable hand, and bench drills. Choose it for a practical range of diameters and replacement pilots. Its size selection does not include a 1/2-inch cutter, so avoid it if that exact diameter is required.
ASNOMY 12-Piece Tungsten Carbide Kit
The ASNOMY kit is best for users prioritizing hard-metal applications and a defined cutting depth. It includes cutters from 5/8 to 2-1/8 inches, a titanium-plated M2 pilot drill, a 10 mm shank, and a stated cutting length of 1 inch. Its teeth use a three-blade design with outer, middle, and inner blades.
Choose this set if its listed diameters and one-inch cutting length fit the work. The size range starts at 5/8 inch, and the stated cutting length may limit projects involving thicker material.
HIDOTOL 20-Piece TCT Carbide Kit
HIDOTOL is best for buyers seeking broad diameter coverage with storage included. The 13 hole saws span 1/2 to 2-1/8 inches. The package also lists two drill bits, three springs, two hex keys, and an aluminum case. Its cutters are described as TCT carbide with three-blade teeth for hard metal, stainless steel, iron, and aluminum.
Choose it if the included size range and case suit your workspace. The listed accessory details do not identify the sizes or specifications of the additional drill bits, so check the product details if those parts are central to your purchase.
Klein Tools 31872 Heavy-Duty Kit
The Klein Tools kit is best for buyers drilling defined holes in sheet metal rather than needing a large assortment. Its carbide cutters are specified for stainless steel, mild steel, iron, copper, and brass sheet up to 3/16 inch thick. The split-point pilot bit is designed to help prevent walking, and the kit includes a rust-proof molded plastic case.
Choose this option when the stated metal types and thickness limit match the task. It is a four-piece kit, so it offers fewer included components and less size coverage than the larger assortments above.
Buying Guide: How to Choose a Steel Hole Saw Bit
Should you choose carbide or high-speed steel?
Carbide-tipped cutters are the focus of these recommendations and are described for hard metals such as steel. Match the cutter to the material and thickness stated by its manufacturer. A hole saw’s tooth material alone does not establish that it suits every steel grade or thickness.
What diameter range do you need?
Measure the required hole before choosing a kit. METOTY and HIDOTOL include a 1/2-inch cutter and reach 2-1/8 inches. GSTK and ASNOMY also reach 2-1/8 inches, but their listed ranges start at 9/16 and 5/8 inch, respectively. Klein’s provided features do not list cutter diameters.
Why do cutting depth and pilots matter?
Check the stated cutting length or maximum material thickness, especially for thick stock. ASNOMY lists a one-inch cutting length, while Klein specifies sheet metal up to 3/16 inch. Pilot drills help guide a hole saw; extra pilots can be useful when replacements are needed, but they do not increase the cutter’s depth capacity.
How should you compare kit accessories?
Count the cutter sizes you will actually use, then compare included pilot drills, wrenches, and storage. More pieces do not necessarily mean a better match: a compact kit may cover a focused job, while a wider assortment can reduce the need to buy individual diameters.
Frequently Asked Questions
Which listed kit includes the most cutter sizes?
METOTY and HIDOTOL each list 13 hole saw sizes, spanning 1/2 to 2-1/8 inches.
Which option specifies a maximum sheet-metal thickness?
Klein Tools states that its cutters are for sheet metal up to 3/16 inch thick.
Can these hole saws cut every type of steel?
The product descriptions identify particular metals and applications, but they do not establish compatibility with every steel grade or thickness. Check the specific cutter limits before use.
Which kit includes a one-inch cutting length?
ASNOMY lists a cutting length of 25 mm, or one inch.
Which sets include replacement pilot drills?
METOTY lists three extra pilot drills, GSTK lists two, and HIDOTOL lists two drill bits without specifying their exact type in the features provided.