Picking up a quality set of dimple lock picks is a bit of a rite of passage for anyone getting serious about locksport. It's that moment where you look at your standard set of hooks and rakes and realize they just aren't going to cut it for those fancy European cylinders or high-security deadbolts with the weird, sideways keys. If you've spent any time staring at a dimple key—the ones with the little craters drilled into the flat side instead of teeth on the edge—you know exactly why these tools exist.
The first time you try to use a standard hook on a dimple lock, you'll probably just end up frustrated. There's no room to maneuver, and you can't get the leverage you need. That's where the specialized flags come in, and honestly, once you get the hang of them, it's one of the most satisfying ways to open a lock.
Why the shape of these picks matters
When you look at a set of dimple lock picks, the first thing you'll notice is that they don't look like your average lock picks. They look like tiny little flags on a pole. This isn't just for show; it's entirely about how you apply force to the pins.
In a standard pin tumbler lock, you're usually lifting the pins straight up with the tip of a hook. But in a dimple lock, the pins are often oriented in a way that makes vertical lifting almost impossible with standard tools. Instead of lifting, you're rotating. You slide the "flag" under the pin and then twist the handle. This rotational movement turns the tip of the pick, which in turn pushes the pin up into the chamber.
It's a different muscle memory altogether. You're not "picking" in the traditional sense so much as you are "dialing" the pins into place. Because you're twisting, the feedback feels different too. It's much more direct, and you can often feel the tiny clicks and grinds of the pins much more clearly through the handle of a flag pick than you can through the shaft of a thin hook.
Choosing your first set without overspending
If you go looking for dimple lock picks online, you're going to find two extremes. On one end, you've got the super cheap sets that look like they were stamped out of a soda can, and on the other, you've got high-end European sets that cost more than a nice dinner for two.
Here's the thing: you don't need the most expensive set to start, but you definitely don't want the absolute cheapest ones either. The "black handle" sets you see on various hobbyist sites are a popular starting point. They aren't perfect out of the box—the finish is usually a bit rough, and the edges can be sharp—but they are a great project.
A lot of people in the community actually enjoy taking a budget set and spending an afternoon with some high-grit sandpaper. If you polish the shafts and round off the edges of the flags, those cheap tools can perform surprisingly well. It's almost like a "break-in" period for your gear. Of course, if you have the budget, going for something like a Multipick set is a dream. The steel is better, the handles are ergonomic, and they glide through the keyway like butter. But don't feel like you're "lesser" for starting with a DIY-improved budget set.
Understanding the "Left" and "Right" flags
This is where most beginners get a little tripped up. In a standard set of dimple lock picks, you'll see flags that point to the left and flags that point to the right. You might think, "Why do I need both?"
It all comes down to which side of the keyway you're working from. Depending on how the warding (those squiggly metal bits inside the lock) is shaped, you might only have room to sneak your pick in from one side. If the pins are on the right and the only gap is on the left, you need a flag that reaches across and lifts.
Also, sometimes a pin is being stubborn, and switching the direction you're twisting from can be just enough to nudge it past a security feature. It's all about having options. When you're cramped inside a tiny European profile cylinder, every fraction of a millimeter counts.
The importance of the handle
I can't stress this enough: the handle is everything when it comes to dimple picking. Since the primary movement is a twist, you need a handle that gives you a good grip and doesn't just slide around in your fingers.
Some of the cheaper dimple lock picks have round, slick handles that make it really hard to tell exactly how much torque you're applying. Better sets use flat or textured handles. If you're stuck with a set of round-handled picks, a little bit of heat-shrink tubing or even some grip tape can make a world of difference. You want to feel every tiny vibration from the lock, and you can't do that if you're struggling just to hold onto the tool.
Mastering the tension
Just like with any form of lock picking, tension is the secret sauce. However, with dimple locks, you often have to be a bit more surgical. Because the tolerances on these locks are usually tighter than your average hardware store padlock, "heavy tension" usually just results in stuck pins and bent tools.
I've found that using a specialized tension wrench that fits snugly in the top or bottom of the keyway is a game changer. You want to avoid any "springiness" in your tension. If your wrench is flexing, it's soaking up all that juicy feedback you need to hear what the pins are telling you. When using dimple lock picks, I usually prefer top-of-the-keyway tension because it leaves the entire bottom of the keyway open for my pick to move around.
Dealing with security pins
If you're moving into the world of dimple locks, you're going to run into spools, serrated pins, and maybe even some "pin-in-pin" designs (looking at you, Mul-T-Lock). These are designed specifically to mess with you.
When you're using your dimple lock picks and you feel the plug rotate a little bit but the lock doesn't open, you've probably hit a "false set." This is where a spool pin has caught on the shear line. This is actually a good thing! It means you're close.
To get out of a false set, you have to carefully probe the pins. When you touch the right one, the plug will actually try to rotate backwards against your tension. This is called counter-rotation. You have to let off the tension just a tiny bit—just enough to let the pin move, but not so much that everything else falls back down. It's a delicate dance, and it's why dimple picking is so addictive.
Maintenance and Care
It's worth mentioning that dimple lock picks are a bit more delicate than standard hooks. Because the tips are often quite thin, you can't just go cranking on them with all your might. If a pin isn't moving, it's probably because you have too much tension on the lock, not because you aren't twisting the pick hard enough.
Keep your picks clean and occasionally check the tips for any signs of bending or "fatigue" in the metal. If you've spent the time to polish them up, they should last you a long time. I like to keep mine in a dedicated roll or case so the flags don't get snagged on each other and bend.
Wrapping things up
Starting out with dimple lock picks can feel a bit like learning to pick all over again. The tools feel different, the movement is weird, and the locks are often much more intimidating. But honestly, that's the best part of the hobby. It breaks the monotony of standard pin tumblers and opens up a whole new world of high-security hardware to explore.
Whether you're looking to defeat a simple Abus or you've got your sights set on a complex Mul-T-Lock, having the right set of flags is the only way to get the job done. Just remember to take your time, keep your tension light, and don't be afraid to take some sandpaper to those budget picks to make them truly yours. It's a rewarding challenge, and there's nothing quite like the sound of a high-security dimple lock finally clicking open after a long session.