Expanded Bump Key Set – 12 Piece Wide Coverage Kit for U.S. Locks

The Expanded Bump Key Set is built for professionals and serious users who need wide coverage of the most common locks found across the United States.

This 12-piece bump key set is designed to give you strong compatibility with many residential and light commercial keyways in one organized kit. Buying the full set saves money compared to purchasing keys individually, while giving you broader coverage right out of the box.

All keys are precision cut by code right here in the USA.

Precision Cut by Code for Consistent Performance

Every key in this set is cut directly by factory code, not duplicated from worn keys.

That matters because code cutting provides:

• Accurate depth spacing
• Cleaner, sharper cuts
• Better energy transfer
• More consistent bump performance

We modify the keys during the cutting process to optimize bump response and shoulder alignment. This improves impact performance and helps deliver repeatable results.

Each key is deburred after cutting to remove as many sharp edges as possible and improve smooth insertion into the lock.

The result is a cleaner, smoother key that slides consistently across compatible locks.

Wide Coverage of Common U.S. Keyways

The Expanded Bump Key Set is designed to work with many of the most widely used lock brands in America.

This makes it a practical solution for locksmiths, lock sport enthusiasts, maintenance professionals, property managers, and security researchers who need reliable nationwide compatibility.

Free Bonus Included – Bump Key Springs

Every Expanded Bump Key Set includes a full pack of 10 Bump Key Springs, also known as Bounce Back Rings, at no additional cost.

These springs help improve rebound, consistency, and overall bump efficiency. Including them free with every order ensures you have what you need for proper setup without buying additional accessories.

Professional Tool – Not a Toy

These are professional tools intended for trained and responsible users. They are not toys.

Made in the USA. 

All keys are cut by code in the United States and ship from our midwest warehouses ensuring speedy delivery.

Every order is backed by a full refund guarantee. If you are not satisfied with your Expanded Bump Key Set, return it for a complete refund.

Included Key Types

KW1 - 5 Pin Kwikset
KW11/KW10 - 6 Pin Kwikset
M1 - 4 Pin Master Padlock
M10 - 5 Pin Master Padlock
SC1 - 5 Pin Schlage 
SC4 - 6 Pin Schlage
AM7 - 6 Pin American Padlock
AR4 - 6 Pin Arrow
DE6 - 5 Pin Dexter
IN33 - 5 Pin Ilco
WR5 - 5 Pin Weiser
Y1 - 5 Pin Yale