"Very easy and will be buying more again"verified buyer, 09/06/2022
Pin in Pin Mul-T-lock Classic Bump Key - for Lock Bumping
FREE UK Delivery
FREE UK Delivery
FREE UK delivery within 4 - 6 days on orders over £30 (a flat £3.95 under £30), upgradeable to 2 - 3 days. All our orders are packaged discreetly for your convenience and dispatched the same working day for orders placed before 4pm.
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Further details for shipping upgrades and other countries can be found here.
Pin in Pin Mul-T-lock Classic Bump Key - for Lock Bumping is backordered and will ship as soon as it is back in stock.
FREE Beginner Lock Pick Guide
FREE Beginner Lock Pick Guide
Our short 30-page How to Pick Locks PDF online guide will be sent to you free after you purchase any lock pick set.
We do have 2 amazing real book upgrades customers love:
1. Illustrated 60 page Lock Picking Glossy Guide Booklet
2. Definitive 180 page Full Colour Visual Guide Book for all Lock Pickers
About This Item
About This Item
Description
Description
A Mul-T-Lock Classic pin-in-pin bump key
This bump key is for lawful specialist practice on Mul-T-Lock Classic pin-in-pin locks. Use it only on locks you own or have explicit permission to work on, and treat profile match, timing and reset as the real skill.

"Bumped a few locks with this key."verified buyer, 02/19/2014
"Top item does the job and very pleased with it"verified buyer, 07/10/2018
Buy this when the profile matches the lock
Bump keys are profile-specific. The right key, suitable lock, dampening and modest strike timing matter more than force.
Profile-led choice
Choose it for Mul-T-Lock Classic pin-in-pin locks.
Practice setup
Pair with dampeners, springs and a suitable bump hammer.
Timing skill
Use it to study rhythm, reset and feedback.

Practise timing on authorised locks
Use a dedicated practice lock, keep impact modest and record what changes when timing, tension and reset are adjusted.
- Use only on locks you own or may lawfully open.
- Pair with dampeners and a suitable bump hammer.
- Keep impact modest and focus on timing.
Helpful next step: bump key dampeners.
What to know before you choose
| Product type | Bump key |
| Profile focus | Mul-T-Lock Classic pin-in-pin locks |
| Contents | 1 professionally cut bump key |
| Use case | Lawful lock-bumping practice |
| Brand | UKBumpKeys |
Use lock picking and entry tools responsibly, only on locks you own or have permission to work on, and check local laws before buying.
Quick answers
Where should I practise?
Use locks you own or have explicit permission to work on.
Does force solve it?
Keep impact modest and learn timing instead.
What should I add?
Dampeners, a bump hammer and a dedicated practice lock.
What matters most?
Profile match, reset, timing and lawful practice setup.
Choose the bump key by profile
A profile-specific key gives your practice a clearer, more controlled route.
Payment & Security
Payment methods
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