Bump Keys and Bump Tools That Match Your Lock
A bump key only works when it matches the keyway of the lock in front of you. That is why we cut ours for the most common residential keyways in North America: KW1 for Kwikset, SC1 and SC4 for Schlage, M1 for Master Lock, Y1 for Yale, AR1 for Arrow, and WR5 for Weiser. Pick the keys that match the locks you practice on, or grab the Complete Bump Key Bundle and cover all of them at once.
More than just the keys
Lock bumping is a two-part technique: the key takes the energy, and the strike delivers it. The Bump Hammer gives you a consistent, controlled strike instead of improvising with a screwdriver handle, and Rebound Rings keep the key seated at the right depth before every strike, so the technique stays repeatable instead of hit-or-miss.
Where to start
- New to bumping: the Lock Bumping Starter Kit pairs the most common keys with the striking tool, so everything works together out of the box.
- Cover every keyway: the Complete Bump Key Bundle is the full set of profiles we cut.
- Just need one: every bump key above is available individually - match it to the keyway stamped on your lock's key.
Bump keys are a legitimate part of locksport and a fast way to understand how pin tumbler locks respond to kinetic attacks. As with everything we sell: only use them on locks you own or have explicit permission to open.