Best Hole Saw Kit for Plumbing Fittings (2026): What to Buy and How to Match Sizes

Quick Picks

The quickest way to sort this category is to match the kit to the mess you want to avoid. Bigger kits reduce mid-job surprises, while smaller kits reduce shelf clutter and cleanup time after the cut.

The published details here do not list every diameter or case dimension, so the useful comparison starts with piece count and the cutting approach each kit leans on. That is the real ownership trade-off in this category, more pieces solve more jobs, but more pieces also mean more sorting and more case clutter.

Who This Guide Is For

This guide fits homeowners and first-time buyers who are cutting access holes for sink supplies, shutoffs, bath rough-ins, laundry hookups, and clean openings through cabinets or drywall. It skips masonry and tile work, and it does not waste space on oversized trade kits that look impressive but live untouched in a garage drawer.

The buyer problem is simple. You want the right opening on the first pass, and you want the kit to stay organized enough that the next project does not turn into a scavenger hunt.

How We Chose

This shortlist favors plumbing-friendly hole cutting, not generic workshop noise. The useful questions here are not, “Which box looks biggest?” The useful questions are, “Which kit covers the sizes a homeowner actually needs?” and “Which kit leaves the least cleanup pain after the job ends?”

The ranking leans on five things: piece count, the stated cutting approach, storage friction, fit for repeat use, and whether the kit solves a plumbing job without pushing the buyer into an oversized assortment. Brand depth matters too, because a kit tied to a known line is easier to extend later if the next project asks for a different size.

The hidden cost in this category is time. A kit that goes back into the case fast gets used more. A kit that leaves loose parts on the bench gets ignored the next time a hole needs to be cut.

1. Milwaukee 49-56-7100 Hole Dozer Hole Saw Kit (15-Piece): Best Overall

The broadest default buy

Milwaukee 49-56-7100 Hole Dozer Hole Saw Kit (15-Piece) sits on top because it gives the widest practical coverage in this list. That matters for plumbing work, where one project turns into several openings and the sizes stop matching your original guess.

It is the safest first purchase for a homeowner who wants one case for mixed plumbing fittings, cabinet penetrations, and rough-in work. The 15-piece spread reduces the odds of hitting a dead end halfway through the job.

The trade-off is pure ownership friction

More pieces mean more sorting, more case space, and more chance of a missing cup or loose part after the job. This is not the tidy little backup kit that disappears into a drawer, and it is not the right buy for a single hole repair.

Best for: a first kit, mixed plumbing jobs, and anyone who wants fewer store runs. Not for: one-off repairs where a smaller set stays cleaner and easier to store.

2. DEWALT 15-Piece Bi-Metal Hole Saw Kit (DWASHR15): Best Value

Broad coverage without paying for the top slot

DEWALT 15-Piece Bi-Metal Hole Saw Kit (DWASHR15) earns the value pick because it keeps the same 15-piece footprint as the Milwaukee while aiming at the buyer who wants practical coverage first and brand premium second. That makes it a smart entry point for first-time buyers who know they need a real assortment but do not need the highest-end badge.

The bi-metal construction gives it a straightforward, work-ready pitch for common plumbing penetrations. For shoppers trying to keep the budget in line, that matters more than chasing a fancier label.

What gets trimmed to hit the value lane

The trade-off is refinement. This is the kit that wins by being sensible, not by promising the smoothest workflow or the neatest edge finish after the cut.

If the job is about covering common sizes with one purchase, this set does the job. If the job is about the cleanest edge control or the fastest starts, the stronger specialty picks move ahead.

Best for: budget-conscious buyers who still want a full-size spread. Not for: finish-sensitive work where edge cleanup ranks above all else.

3. Lenox Tools Speed Slot Bi-Metal Hole Saw Kit (6-Piece): Best for Specific Needs

The speed pick for repetitive rough-ins

Lenox Tools Speed Slot Bi-Metal Hole Saw Kit (6-Piece) brings the clearest productivity angle in the roundup. The Speed Slot geometry is built for quick starts and efficient cutting, which is exactly what matters when the job is a string of plumbing access holes and not a one-off vanity project.

That makes it strong for rough-in days, service calls, and any setup where the same few openings get cut more than once. The smaller kit also keeps the case easier to manage between jobs.

The smaller spread is both the strength and the limit

Six pieces do not cover as much ground as a 15-piece kit. That trade-off is real, and it shows up fast on remodels where the hole list grows after the first cut.

Best for: repetitive plumbing rough-ins and buyers who value quick starts. Not for: broad homeowner coverage or a do-everything first kit.

4. IRWIN Metal Reaming Hole Saw Set (4935521): Best Easy Pick

The cleaner-finish choice

IRWIN Metal Reaming Hole Saw Set (4935521) takes a different lane. The reaming-focused approach helps clean the opening after the main cut, which improves fit when the edge matters and the hole shows after the install.

That makes it a strong option for trim-sensitive plumbing penetrations, visible wall openings, and any job where a sloppier edge creates more cleanup work later. It is the easiest kit to justify when finish quality outranks raw cutting speed.

The payoff comes after the cut, not before

This is not the fastest path through a stack of holes. It solves the cleanup stage better than it solves the high-volume cutting stage, so buyers who want pure speed stay with Lenox or the broader coverage kits.

Best for: edge cleanup and tighter seating around plumbing fittings. Not for: repeated rough-ins where speed matters more than finish.

5. Bosch Progressor Hole Saw Kit (5-Piece): Best Upgrade

Small footprint, tight job focus

Bosch Progressor Hole Saw Kit (5-Piece) is the compact choice in the lineup. It makes sense for targeted repairs and small plumbing jobs where only a few common sizes matter and storage space is at a premium.

That small footprint is the point. It keeps the kit easy to stash in a drawer, a truck compartment, or a small garage shelf without dragging in extra metal you never touch.

The compromise is size range

Five pieces leave less room for surprise sizes, and that matters more on bigger remodels than on isolated repairs. Once the job broadens, this set reaches its limits faster than the 15-piece options.

Best for: small, targeted openings and buyers who hate clutter. Not for: multi-room plumbing work or broad first-kit coverage.

What to Check on the Product Page

The page details that matter here are not the marketing lines. They are the size count, the cutting style, and whether the kit matches the kind of cleanup the job demands.

A product page that does not show the sizes you actually need is not a good buy, no matter how good the headline sounds. For plumbing fittings, the right kit is the one that matches the openings you will cut this season, not the one that looks complete on paper.

Which One Makes Sense for You?

Start with the job pattern, not the box size.

• Buy Milwaukee if you want one first kit that covers the broadest mix of plumbing fitting jobs.
• Buy DEWALT if budget matters and you still want the full 15-piece spread.
• Buy Lenox if you cut the same kinds of openings over and over and want faster starts.
• Buy IRWIN if edge cleanup and fit quality matter more than drilling speed.
• Buy Bosch if you want the smallest, simplest kit for targeted repairs.

That order holds because the trade-off in this category is not subtle. Broad coverage brings more flexibility, while compact kits bring less clutter and faster storage.

Who Should Skip This

Skip these kits if the job is tile, masonry, or another specialty surface that needs a different cutter. Skip them too if you only need one exact opening and already own the right size, because another full kit adds clutter without adding value.

A homeowner who cuts once in a blue moon does not need to pay for a big assortment that spends most of its life closed in a case. In that situation, the smarter move is the smallest kit that solves the exact job or a borrowed size from a friend or neighbor.

What We Did Not Pick

Klein Tools, Starrett, Ryobi, Makita, and Greenlee all compete in this category, and they missed the cut for this plumbing-first roundup. Some lean too far toward broader trade use, some lean into bigger assortments than a homeowner needs, and some add storage friction without improving the fit of a typical plumbing job.

This list stays narrow on purpose. The goal is not to own the most metal. The goal is to own the kit that gets used, goes back in the case cleanly, and covers the sizes that show up in actual plumbing work.

Buying Guide

Match the hole to the fitting, not the pipe label

Nominal pipe size is not the number to shop by. The opening has to clear the outside diameter of the fitting, trim ring, sleeve, or escutcheon that passes through the surface.

That is the first sizing mistake to avoid. A hole that is sized to the pipe label, not the actual outside diameter of the part, lands too tight and turns a quick install into a fight.

Use this checklist before checkout

• Measure the outside diameter of the part that passes through the opening. That is the size that matters.
• Decide whether the hole will show. Visible holes demand more cleanup focus, which puts IRWIN higher.
• Count the number of different openings you expect to cut. More openings favor Milwaukee or DEWALT.
• Think about storage space. A 5-piece or 6-piece kit stays easier to keep organized.
• Match the cutting style to the job pace. Speed Slot favors fast rough-ins, reaming-focused tools favor finish cleanup.
• Keep the kit dry and sorted after use. Packed chips and sloppy case storage create hassle the next time the kit comes out.

The simple rule that saves money

Choose the smallest kit that still covers the openings you actually expect to cut. Bigger sets are worth it only when the extra sizes get used. If they sit dead in the case, they are just clutter with a brand name on the lid.

Final Recommendations

Milwaukee 49-56-7100 Hole Dozer Hole Saw Kit (15-Piece) is the best first buy for most homeowners because it balances coverage and ownership friction better than the rest. It gives the widest practical range for plumbing fittings, and it does it without forcing a second purchase after the first project exposes a missing size.

DEWALT is the smart value buy when the budget matters and broad coverage still matters. Lenox is the right move for repeated rough-ins and fast starts. IRWIN takes the edge when cleanup and fit quality matter more than speed. Bosch is the compact answer for small, targeted jobs.

Bottom line: if one kit goes in the cart today, Milwaukee is the safest default. It covers the most ground, and for plumbing fitting work, that saves more headaches than a smaller, tidier box with gaps in the size list.

FAQ

What size hole saw do I need for plumbing fittings?

Measure the outside diameter of the fitting, trim ring, sleeve, or escutcheon that passes through the surface. Do not shop by nominal pipe size alone. The hole has to clear the actual part, not the label printed on the pipe.

Is a 15-piece kit too much for a homeowner?

No, not if you cut several openings or plan more than one project. A 15-piece kit makes sense when you want one box to handle mixed plumbing work. It is too much when you only need one or two exact sizes and want the smallest possible storage footprint.

Is bi-metal the right choice for plumbing hole saw kits?

Bi-metal is the right choice in the DEWALT and Lenox picks because it supports a practical all-around cutting setup. It is the best fit when you want a straightforward kit for common plumbing penetrations without moving into specialty-only territory.

Do I need a reaming-focused kit?

Yes if the hole will be visible or the fitting needs a cleaner seat. IRWIN earns its place by improving the finish after the cut. If the job is hidden and speed matters more, a broader or faster-cutting kit makes more sense.

What matters more, cleanup or size coverage?

Coverage matters more for the first kit, cleanup matters more for the second or third. A first-time buyer gets the most value from a kit that solves the widest range of openings. A buyer who already owns a broader set gets more from a cleanup-focused or compact backup kit.

Is the Bosch 5-piece set enough for plumbing work?

Yes for targeted repairs and small jobs that use only a few common sizes. No for a broad remodel or a first purchase that needs to cover many different openings. Its strength is storage simplicity, not range.

Why does case organization matter this much?

Because a kit gets used more when it goes back together quickly. Loose parts and messy sorting add time after the job, and that turns the tool into clutter. A clean case is not a bonus, it is part of the value.