Mechanics Tool Set (247-Piece)

Features

  • 72‑tooth ratchets (1/4", 3/8", 1/2" drives) with quick‑release button
  • Full‑polish chrome finish for corrosion resistance
  • Vinyl, anti‑slip driver handle
  • Blow‑molded hard case with metal latches for storage and transport
  • Includes a bit driver with specialty bits and nut bits plus 28 hex keys
  • Includes combination wrenches, adapters, and extension bars
  • Includes spark plug sockets and bit sockets (hex and Torx)

Specifications

Number Of Pieces 247
Drive Sizes Included 1/4 in, 3/8 in, 1/2 in
Ratchet Tooth Count 72 teeth
Finish Full‑polish chrome
Handle Vinyl anti‑slip driver handle
Carrier Type Blow‑molded hard case with metal latches
Measurement Standard SAE and Metric
Socket Type 6‑point standard and deep sockets; bit sockets (hex, Torx)
Socket Size Ranges (1/4" Drive Sae) 5/32 in, 3/16 in, 7/32 in, 1/4 in, 9/32 in, 5/16 in, 11/32 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in
Socket Size Ranges (1/4" Drive Metric) 4 mm–14 mm
Socket Size Ranges (3/8" Drive Sae) 1/4 in, 5/16 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in
Socket Size Ranges (3/8" Drive Metric) 10 mm–21 mm
Socket Size Ranges (1/2" Drive Sae) 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in, 15/16 in, 1 in
Socket Size Ranges (1/2" Drive Metric) 13 mm–24 mm
Deep Socket Sizes (1/2" Drive) 11/16 in, 3/4 in, 13/16 in, 7/8 in, 15/16 in (metric: 17 mm–22 mm)
Bit Socket Types And Sizes Hex (SAE 5/32, 3/16, 1/4, 5/16; Metric 4–8 mm); Torx #10, 15, 20, 25, 27, 30, 40, 45
Combination Wrench Sizes SAE: 11/32, 3/8, 7/16, 1/2, 9/16, 5/8; Metric: 10, 11, 13, 14, 15, 16 mm
Extensions & Adapters 1/4" drive 3" & 6" extension bars; 1/4" female to 3/8" male adapter; 3/8" drive 3" & 6" extension bars; 3/8" female to 1/4" male adapter; 1/2" drive 5" extension bar; 1/2" female to 3/8" male adapter
Spark Plug Sockets 3/8" drive: 5/8 in, 3/4 in, 13/16 in
Nut Bit Sizes SAE: 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16; Metric: 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 10 mm
Specialty Bits & Accessories 28 hex keys; 44 specialty bits; 1 bit driver
Warranty Limited lifetime warranty

247-piece mechanics set containing ratchets, standard and deep sockets, a bit driver with specialty and nut bits, combination wrenches, and hex keys. Tools are stored in a blow-molded hard case with metal latches. Ratchets use a 72‑tooth mechanism with a quick-release button. Tools have a full-polish chrome finish for corrosion resistance.

Model Number: DWMT81535

DeWalt Mechanics Tool Set (247-Piece) Review

4.6 out of 5

I tossed the DeWalt 247-piece set behind the truck seat and put it straight to work over a few weeks of mixed-duty tasks: an RV trip shakedown, a lawn tractor tune-up, an HVAC blower swap, and a quick brake service. It’s a broad, flat case that slides neatly where other “cube” kits won’t, and that portability defines the whole experience. This is a go-anywhere mechanics set that covers most fasteners you’re likely to meet in general automotive, equipment, and household repair.

What you actually get—and how far it goes

Coverage is generous without getting exotic. There are three ratchets (1/4, 3/8, 1/2-inch drives) paired with 6-point sockets in both SAE and metric, plus a meaningful spread of deep sockets. The set tops out at 1 inch (SAE) and 24 mm (metric), which took care of lug nuts, suspension hardware, and mower deck bolts in my mix. You also get spark plug sockets (5/8, 3/4, 13/16), a clutch of bit sockets (hex and Torx), a bit driver with a wide assortment of bits, a handful of combination wrenches, and the practical staples—adapters and extension bars in each drive.

It’s not a “shop master” set, but the breadth is enough that I wasn’t hunting for sizes all day. The combination wrenches are the most limited piece of the puzzle; they cover common mid-range sizes but don’t replace a standalone wrench roll. If you lean heavily on wrenches, you’ll want to supplement.

Ratchets and sockets: the core experience

The ratchets are the highlight. All three drives use a 72-tooth mechanism, so you get a 5-degree swing arc. In tight quarters—pulling blower assemblies or reaching around accessory brackets—that fine-tooth engagement matters. I had no trouble bumping fasteners one click at a time where a 36-tooth ratchet would have been frustrating.

The push-button quick-release works cleanly and never jammed, even with gloves. Socket fit is snug, and the 6-point design gripped hardware without rounding. The sockets and ratchets have a full-polish chrome finish that wipes clean easily and shrugs off smudges and road grime. After a few gritty uses, I saw no hint of plating flake or early corrosion.

Torque-wise, the 1/2-inch drive did what I asked of it, including lug nuts and stubborn mower blade bolts, though there’s no breaker bar in the set. If you regularly bust loose rusted hardware, add a breaker bar or cheater pipe to your kit. The extension bars are well chosen—3 and 6 inches in 1/4 and 3/8, and a 5-inch in 1/2—which handled most reach problems I ran into. The included drive adapters (up and down between 1/4, 3/8, and 1/2) broaden your options and were useful in a pinch.

One note: I didn’t see a universal joint in this assortment. It’s a small omission, but if you work around steering shafts or exhaust manifolds, throw a swivel in the case and thank yourself later.

Bits, drivers, and specialty sockets

The bit sockets are a smart inclusion. Hex and Torx sizes cover a lot of modern vehicles and appliances. I used the hex bits on caliper guide pins and the Torx on an HVAC fan housing without issue. They seat cleanly, didn’t twist under normal torque, and save you from stacking a bit into a driver into an adapter—always a sloppier setup.

The separate bit driver with a vinyl anti-slip handle is fine for light work. It’s not a replacement for a dedicated screwdriver set in feel or leverage, but it’s handy for interior work, clamps, and light-duty fasteners. The assortment of bits is broad enough that I found what I needed each time.

Spark plug sockets with rubber retainers are here and did their job—no plugs dropped into a well, and the sizes cover common engines.

Wrenches: useful, but not the star

The combination wrenches are solid, polished, and straight. They’re regular wrenches—no ratcheting mechanism—and they hit the most used sizes in both SAE and metric. For me, they complemented the ratchets rather than replaced a full wrench set. If your work style relies on wrenches for speed or clearance, you’ll want a more comprehensive wrench lineup.

The case: portable and polarizing

The blow-molded case is a flat “briefcase” profile with metal latches. I like this format. It stows behind a seat, stacks on a shelf, and doesn’t hog floor space. The metal latches feel secure and have held up to being tossed around the bed of a truck and opened in cold weather.

Retention inside is the mixed bag. Most sockets and bits snap into their molded nests with a firm click, and everything looks tidy when you lay the case flat. If you store and open it horizontally, you’ll likely be happy. If you carry the case upright and then open it vertically, some rows—especially smaller sockets and bits—can shake loose and scatter. That’s frustrating in the field.

Two practical tips fixed this for me:
- Transport it flat whenever possible and open it like a suitcase.
- Cut a thin sheet of foam (or even an old mouse pad) to lay over the sockets before closing the lid. It adds just enough compression to keep everything put.

It’s also heavy. That’s the trade-off with a 247-piece kit in a sturdy case. The flip side is that the flat format spreads the weight, and the handle is comfortable enough for short hauls.

Day-to-day use and ergonomics

Ergonomically, the ratchets have a comfortable handle profile that didn’t hot-spot my palm under load. Direction switches are positive without being stiff. The chrome finish throughout is easy to keep clean and makes spotting dropped pieces easier. Size markings are readable, though, like most polished sets, they can glare in direct sunlight; I marked a handful of frequently used sockets with a paint pen for quick grabs.

The set’s selection makes sense for mobile repairs. Those adapters let you, for example, power a 1/4-inch socket with your 3/8 ratchet if the smaller ratchet is buried elsewhere in the case. Deep sockets in 1/2-inch drive covered suspension nuts well; 3/8 handled most engine bay duties; and 1/4 took care of panels and light brackets.

What it does well—and where you’ll outgrow it

Strengths:
- Broad, practical size coverage in SAE and metric with 6-point sockets.
- Three 72-tooth ratchets with quick-release make tight work easier.
- Useful bit sockets and spark plug sockets reduce the need for a second case.
- Flat, metal-latched case is easy to stash and carry.

Limits:
- No breaker bar and no universal joint—both common needs if you wrench often.
- Wrench selection is limited; not a full replacement for a dedicated set.
- Case retention can be hit-or-miss if you store and open it vertically.
- Tops out at 1 inch/24 mm; heavy-equipment work will need larger sockets.

Durability and warranty

I ran the set in cold and damp conditions, wiped it down, and tossed it back in the case. The chrome finish has held up, and the ratchet mechanisms feel consistent. DeWalt backs it with a limited lifetime warranty, which is table stakes in this category but still reassuring.

Who it’s for

If you’re outfitting an RV, truck, or garage with a single, portable mechanics kit that covers a lot of ground without chasing oddball fasteners, this set makes sense. It’s an excellent “base camp” kit for DIY automotive work, small-engine repair, and general maintenance. Pros who need a travel kit for site calls will appreciate the breadth and the case format, but heavy daily users will still want standalone specialty tools beside it.

Recommendation

I recommend the DeWalt 247-piece set as a capable, portable core kit for DIYers, mobile techs, and anyone who wants comprehensive coverage in one case. The ratchets are smooth, the 6-point sockets fit well, and the accessory mix reduces extra trips to the toolbox. Be aware of the case quirk—carry it flat and consider adding a thin foam sheet—and plan to add a breaker bar, a universal joint, and a fuller wrench roll if you tackle tougher or more frequent jobs. With those small additions, this becomes a hard-to-beat, go-anywhere toolkit.



Project Ideas

Business

Mobile Furniture & Fitness Assembly

Offer on-site assembly for flat-pack furniture, treadmills, and squat racks. The full SAE/Metric coverage, hex keys, and Torx bits cover most brands, while the 72‑tooth ratchets speed up builds in apartments with tight clearances. Package pricing by item type plus upsells (anchoring, leveling).


Bike & E‑Scooter Tune-Up Pop‑Ups

Set up weekend tune-up stations at apartments or offices. Hex keys and Torx bits handle brakes/rotors/stems; sockets fit axle nuts and headsets. Sell tiered services (basic safety check, brake/shift adjustment, flat fix) and small add‑ons (lights, bells, cables).


Small Engine Seasonal Service

Provide lawn mower, snow blower, and generator tune-ups: spark plug swaps, blade removal, and handle hardware fixes. Use the included spark plug sockets and deep sockets; extensions reach cramped engine bays. Offer pickup/dropoff or curbside service before peak seasons.


Marketplace Assembly Concierge

Help buyers/sellers of used furniture and gym gear with fast disassembly, transport-ready bundling, and reassembly. The organized hard case makes on-site work efficient, and the adapters/extensions handle oddball hardware. Charge per item plus travel and evening/weekend surcharges.


Contractor Van Rack & Accessory Installs

Install ladder racks, shelving, partitions, and tie-downs for tradespeople. Torx and hex bit sockets cover many aftermarket kits; the ratchets and deep sockets speed bolt-through installs. Offer fleet discounts and add-ons like lighting, bottle holders, and first-aid mounts.

Creative

Unistrut Roof Basket/Bed Rack

Build a bolt-together roof basket or pickup bed rack using Unistrut, corner fittings, and stainless hardware. The 72‑tooth ratchets and deep sockets make fast work in tight roof-clearance areas, and the metric/SAE coverage means no surprise hardware stops. Add LED light mounts and tie‑downs for a finished look.


Engine-Part Desk Lamp

Upcycle a piston and connecting rod into an industrial lamp. Use the spark plug sockets to pull plugs for a decorative base, and the hex/Torx bits to fasten the lamp hardware to the rod. The polished chrome tools help with grimy salvage-yard parts and clean up easily afterward.


Modular 8020 Aluminum Shop Organizer

Create a wall-mounted, reconfigurable tool and camera gear organizer from 8020 aluminum extrusions. The hex keys and bit sockets make assembly simple, while adapters/extensions help reach recessed T‑nuts. Design shelves, hooks, and a sliding camera arm that can be reconfigured anytime.


Black Pipe + Reclaimed Wood Workbench

Assemble a sturdy workbench frame from black iron pipe and flanges, then top with reclaimed hardwood. Use sockets and combination wrenches to cinch fittings and lag bolts, and the extensions to reach inside the frame. Add locking casters and a side-mounted power strip for a pro finish.


Vintage Bicycle Refresh

Rescue an old bike: swap stem/seatpost, service hubs, replace brake hardware, and add fenders or a basket. Hex keys handle most fasteners, Torx bits cover modern rotors, and the socket set tackles axle nuts and crank bolts. Finish with color-matched cable housing and grips.