Hole saws cut round openings in wood, metal, drywall, and composite materials, and they earn their place on any jobsite that needs door hardware, conduit runs, or plumbing penetrations. The design of the saw matters as much as the size you choose, because tooth geometry, plug removal, and the pilot drill all affect how fast and how cleanly the cut goes. Recent updates to one major hole saw line show how manufacturers keep improving these details, and the new storage cases that arrived with the redesigned saws changed how crews carry them.
Understanding how hole saws and reciprocating saw blades share sizing concepts such as TPI helps you match the right cutting tool to the material and keeps jobsite storage organized. The redesigned saws arrived with two changes worth understanding: a new tooth design that trades some cutting speed for durability, and an all-access slot that makes plug removal and pilot bit placement easier. A set of new cases followed, built around interchangeable pins that let you customize how many saws you carry. The sections below explain the design changes, the case options, and how to protect both the blades and the boxes that hold them.
The Evolution of Hole Saw Storage
Storage cases for hole saws started as simple blow-molded trays with fixed posts molded into the plastic. The saws snap onto the posts, and the layout is whatever the factory decided. That design works until a post breaks, as happened to one reviewer whose larger set arrived with a broken post, or until the case forces you to carry sizes you do not need for a specific job. Dragging a full case around when only two sizes are needed is a familiar frustration on service calls.
The evolution of tool storage from blow-molded cases to stackable toolbox systems explains why fixed layouts are disappearing. The new hole saw cases use interchangeable pins that snap into a grid, so you choose which sizes ride along and how many of each.
What interchangeable pins change
With removable pins, a small case can carry the three sizes you use most, and a large case can be reconfigured when a job calls for a full set. The pins sit in a base plate, and repositioning them takes seconds. The new cases are compatible with all hole saws in the line, so older saws work in the new boxes. The removable posts also look more durable than the molded ones, which is the part that failed in shipping on older designs.
Hinge, latch, and handle details
A double-action hinge lets the lid nest under the case, so the lid stays out of the way while you reach for saws. The large case adds a more robust latch and reinforced corners, while both sizes use flexible webbing handles that fold flat for stowing. The small case fits into stackable storage systems, which matters for crews that run modular boxes in vans. Pricing for the two cases is modest: 10 dollars for the small case and 20 dollars for the large one, with availability expected in early 2021.
Tooth Design and Cutting Performance
The tooth design update is the bigger story. The previous generation used a 4/5 variable TPI pattern, while the new saws use a 3.5 TPI design. Lower TPI means fewer, larger teeth, which cut aggressively and resist chipping in metal. The manufacturer claims the new geometry delivers the longest life in metal-cutting applications and backs the saws with a lifetime warranty against tooth breakage, the only such warranty in the industry at the time. Bi-metal construction, with a high-speed steel cutting edge welded to a tough alloy body, is what allows that durability in the first place.
A closer look at what you need to know before buying hole saw sets covers arbor fit, tooth count, and case quality in detail, which helps when comparing one line against another.
| Feature | Previous generation | Current generation |
|---|---|---|
| Tooth design | 4/5 variable TPI | 3.5 TPI single pattern |
| Plug removal | Two plug-removal holes | All-access slot design |
| Pilot bit visibility | Limited by the plug | Clear view for accurate placement |
| Warranty | Standard coverage | Lifetime tooth break warranty |
How TPI changes the cut
Teeth per inch is the standard way to describe saw blade aggressiveness. A lower TPI cuts faster and clears chips more easily but leaves a rougher edge, while a higher TPI gives a finer finish at lower speed. For hole saws in metal, a 3.5 TPI pattern balances cutting speed with tooth strength, and the variable 4/5 pattern it replaced traded some durability for a smoother entry. The practical result shows up in service life: saws that hold their teeth stay round longer and cut cleaner holes at the end of a hard week.
The all-access slot and plug removal
Hole saws clog when the cut plug stays trapped inside the cup. The all-access slot opens the side of the saw so the plug can be pushed out with a screwdriver or a punch, and it gives you a clear line of sight to the pilot drill bit. Accurate pilot placement keeps the hole round and prevents the saw from walking across the surface, which is the difference between a clean penetration and a damaged panel.
Protecting Saw Blades: Cleaning and Maintenance
A hole saw dulls in stages, and most failures trace back to heat and debris rather than normal wear. Cutting metal without lubrication cooks the teeth, cutting wet or resinous wood coats the gullets, and leaving saws damp invites rust on the cutting edge. A short maintenance routine keeps a set sharp through hundreds of holes.
- Knock the plug out and blow chips out of the gullets after every hole.
- Wipe the saw body and teeth with a dry cloth before it goes back in the case.
- Use cutting oil or wax for metal work, and run the saw at low speed.
- Check the pilot bit for bends and the arbor for wear at the start of each week.
- Replace the saw when the teeth stop biting cleanly, because a dull saw burns wood and smears metal.
Regular care helps protect saw blades from rust and dulling between jobs, and the same routine extends the life of the case by keeping debris out of the pins and latches.
Matching Hole Saws to the Right Drill
Hole saw performance depends on the drill as much as the saw. The arbor must fit the drill chuck, the speed rating of the saw must match the drill’s RPM range, and the motor needs enough torque to keep the teeth engaged at low speed. Most hole saws cut best between 300 and 1,000 RPM depending on diameter and material, and running them flat out burns the teeth in seconds.
The same cordless platform that delivers power and precision in a 7-1/4-inch circular saw also runs the drills used with hole saws, so matching speed ratings to the tools you already own keeps cutting predictable across the jobsite.
Arbor and pilot drill basics
Most hole saw kits use a quick-change arbor with a pilot drill that centers the cut. The pilot drills the lead hole and guides the saw through the material, so a dull or bent pilot ruins the whole operation. Keep a spare pilot bit in the case, and check the arbor’s hex shank for rounding before it slips in the chuck. Larger diameters need slower speeds and a steady feed, so let the saw cut at its own pace instead of forcing it.
Jobsite Logistics and Site Storage
Cases protect hole saws between cuts, but the case itself has to live somewhere on site. Small cases fit in tool bags and stackable boxes, while large sets ride in van shelving or gang boxes. The physical layout matters: a case buried under other gear gets stepped on, and stepped-on cases crack hinges and bend pins.
At larger scale, moving and storage containers in construction site logistics keep materials and tool cases protected between phases, which stops the damage that happens when loose cases sit on open decks overnight.
Organizing Hole Saws by Size and Frequency of Use
The fastest way to lose time on a jobsite is digging through a mixed pile of hole saws to find the size you need. Group saws by diameter range and by how often you use them. Common electrical sizes such as 7/8-inch, 1-1/8-inch, and 1-3/8-inch stay in the small case that rides in the bag, while plumbing sizes such as 2-inch and up live in the large case on the van.
A practical layout
- Keep the three most-used sizes in the small case for daily work.
- Store large diameters and rarely used sizes in the big case.
- Mark case inserts with the size range printed on the lid.
- Reserve the bottom row for arbors, pilot bits, and spare screws.
Magnetic tool storage cases for organized construction worksites give you another option for keeping frequently used sizes within reach, especially when you work off a metal table or van wall.