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BUMP RINGS (REBOUND RINGS)

Precision Control. Maximum Performance.

Small upgrade. Massive difference.

Bump Rings are the key to clean, controlled, and consistent bumping. Designed to create the perfect rebound between your key and the lock, they ensure optimal energy transfer through the pins—giving you better results with every strike.

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Why Professionals Use Them:
✔ Cleaner, more consistent hits
✔ Improved success rate
✔ Controlled rebound for precise timing
✔ Helps reduce wear on keys and lock components

Made from durable, high-flex rubber, these rings are built for performance—but like any impact tool, they naturally wear over time with repeated use.

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That’s why serious locksmiths always keep extras on hand.

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Remember "Bump Rings" Wear Out Quickly. So Have Extra's on Hand

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What Are Bump Rings (Rebound Rings)?

A bump ring, sometimes called a rebound ring, is a small rubber or silicone ring placed on a key near the shoulder of the key blade.

It is commonly used when performing lock bumping demonstrations or training to help control the movement of the key inside the lock.

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What the Ring Does

The ring acts as a small shock absorber between the key and the lock cylinder.

When pressure is applied to the key and it is lightly struck, the ring allows the key to spring back slightly instead of remaining fully inserted in the lock.

This small rebound movement helps maintain the proper spacing between the key cuts and the lock pins.

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Why Bump Rings Are Used

Bump rings provide several benefits:

Improves control
The ring keeps the key from staying fully seated in the cylinder.

Creates consistent spacing
It helps maintain the correct distance between the key and the pins.

Protects the lock and key
The rubber ring absorbs part of the impact.

Allows repeated use
Keys return to the correct position automatically after each strike.

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Where the Ring Is Installed

The bump ring is placed:

• On the key blade
• Directly behind the key shoulder
• Between the key head and the lock face

When inserted into the lock, the ring sits against the front of the cylinder, holding the key slightly outward.

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Common Materials

Most bump rings are made from:

• Rubber
• Silicone
• O-rings

These materials provide the right amount of flexibility and rebound.

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Typical Size

Most locksmiths use rings approximately:

3 mm – 5 mm thick

The exact size may vary depending on the key type.

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Important Note

Bump rings are generally used by locksmiths, trainers, and security professionals for demonstration, training, and lock testing purposes.

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🔴 Bump Rings (Rebound Rings) – Features & Attributes

Bump rings, also known as rebound rings, are small rubber or polymer spacers used with bump keys to improve control, performance, and protection during the bumping process.

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⚙️ Core Function

• Creates a small gap between the key shoulder and the lock face
• Allows the key to rebound slightly after impact
• Helps transfer kinetic energy efficiently to the pins

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🔑 Key Attributes

1. Shock Absorption

• Cushions the impact from the bump hammer
• Reduces stress on both the key and lock components

2. Controlled Rebound

• Acts like a spring to push the key back slightly after striking
• Prevents the key from staying fully inserted

3. Improved Energy Transfer

• Optimizes the upward movement of driver pins
• Increases chances of achieving the shear line

4. Consistent Spacing

• Maintains a uniform bump distance every strike
• Helps beginners get repeatable results

5. Lock Protection

• Minimizes wear on:
  • Key blade
  • Pins
  • Plug face
• Reduces risk of over-driving pins

6. Noise & Vibration Dampening

• Softens the “click” sound during bumping
• Reduces hand fatigue during repeated use

7. Universal Fit

• Fits all standard residential & commercial keyways:
  • Schlage (SC1/SC4)
  • Kwikset (KW1/KW10)
  • Weiser (WR5)
  • Yale (Y1)
• Stretchable material adapts to different key shoulders

8. Material Composition

• Typically made from:
  • Rubber
  • Silicone
  • Polymer blends
• Designed for flexibility and durability

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📏 Common Specs

• Inner Diameter: fits snug on key shaft
• Outer Diameter: small enough to not interfere with keyway
• Thickness: typically 1–3 mm

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🧰 Why They Matter

Without a bump ring:

• The key can sit too deep
• Energy transfer becomes inconsistent
• Higher risk of damaging the lock or key

With a bump ring:

• More consistent strikes
• Better success rate
• More professional control

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Don't Forget to Buy a Bump Hammer

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Remember "Bump Rings" Wear Out Quickly. So Have Extra's on Hand

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Key Finish may vary between plain brass (gold) and nickel-plated brass (silver) depending on inventory.

This has no impact on performance or quality.

Note: The website explicitly states these tools are intended for Locksport activities and educational use.

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Return Policy

All sales are final and non-refundable