The Milwaukee 48-22-2183 17-Piece Folding Hex Key Set - SAE & Metric is a compact folding hex key set built for service work, maintenance, assembly, and general fastening. This is a hex key set designed for driving and removing SAE and metric hex fasteners in tight spaces. Model Number: 48-22-2183. If you want one pocket-friendly set that covers both inch and metric sizes without digging through loose keys, this is the kind of setup that makes sense.

What matters most here is access. Milwaukee built this set around an elevated key shelf and handle access zones so individual keys are easier to grab and open. That sounds small until you're wearing gloves or bouncing between sizes on the job. The keys also rotate up to 270 degrees, which gives you more workable positions than a basic straight-fold design and helps when you're reaching around obstructions or trying to get extra turning force on a stubborn fastener.

The construction is aimed at real use, not toolbox display. The body is full metal for better durability under higher torque, and the keys are made from heat-treated alloy steel. That combination matters because folding hex sets take a beating: they get tossed in tool pouches, used one-handed, and leaned on harder than most loose L-keys. Milwaukee also uses a black oxide finish on the keys to resist rust and corrosion, which is a practical plus for plumbing, maintenance, and any work that sees damp conditions.

Milwaukee also got the day-to-day details right. The handle uses high-contrast, color-coded markings so size identification is faster at a glance. The chamfered key ends help the wrench seat into the fastener more easily, which cuts down on fumbling when you're working in recessed hardware or awkward positions. The ergonomic handle shape gives you a more comfortable grip when you're running multiple fasteners in a row.

Size coverage is solid for common service and install work. You get 9 SAE keys ranging from 5/64 inch to 1/4 inch and 8 metric keys from 1.5 millimeters to 8 millimeters. That makes this Milwaukee folding hex key set useful across bikes, machinery, fixtures, plumbing trim, equipment covers, and general repair tasks where both measurement systems show up. Instead of carrying separate loose-key rings, you get organized access in a compact format that fits comfortably in a pouch or pocket.

This is a good fit for plumbers, maintenance techs, mechanics, installers, and serious DIY users who want fast access and less clutter. If you mostly work at a bench and need maximum reach on every fastener, individual long-arm keys may still have the edge. But if you need a durable, grab-and-go folding allen wrench set that covers the common sizes and holds up to jobsite use, this one is easy to recommend.

Milwaukee 48-22-2183 17-Piece Folding Hex Key Set - SAE & Metric Gets the Basics Right

This is a smart buy for anyone who wants both SAE and metric coverage in a compact set that is actually pleasant to use.

• Who it's for: Techs, plumbers, installers, mechanics, and homeowners who deal with hex fasteners regularly and want one grab-and-go folding set instead of loose keys rolling around a drawer.
• Why it stands out: The easy-access design, 270 degree key range, and full metal construction solve the three things that usually make folding hex sets frustrating: hard key selection, awkward access, and short service life.
• Worth knowing: A folding set is about convenience first. If you need extra reach for deep fasteners every day, long individual keys still have an advantage, but for carry, speed, and general service work, this Milwaukee set is the better everyday play.

• Does this set include both SAE and metric sizes? Yes. It includes 9 SAE keys and 8 metric keys for a total of 17 pieces.
• How far do the keys open? The keys rotate up to 270 degrees for better access and added torque in tight spaces.
• What are the keys made from? The keys are made from heat-treated alloy steel, and the set uses a full metal body for added durability.
• Is there a warranty? Yes. Milwaukee lists this set with a Limited Lifetime Warranty.