10 Most Common Mistakes When Using Lishi 2-in-1 Tools (And How to Fix Them)

May 15, 2024 by Global Industrial Hub TheLockLab

10 Most Common Mistakes When Using Lishi 2-in-1 Tools (And How to Fix Them)

 
Posted on: May， 2024 | By: TheLockLab Technical Team | Official Lishi Authorized Distributor
 
 
 
 

Introduction

 
Lishi 2-in-1 tools have revolutionized the locksmith industry, combining non-destructive picking and precise decoding into a single instrument. However, even experienced professionals can make mistakes that lead to tool damage, lock destruction, or failed openings.
 
Based on 20+ years of industry experience and feedback from thousands of locksmiths worldwide, we have compiled the most common mistakes and their proven solutions. This guide will help you extend the life of your Lishi tools, improve your success rate, and avoid costly errors.
 
 

Table of Contents

 
  1. Applying Too Much Tension (The #1 Mistake)
  2. Using the Wrong Tool for the Keyway
  3. Removing the Tool Before Decoding
  4. Using Oil-Based Lubricants
  5. Skipping Lock Preparation
  6. Forcing the Tool Into the Keyway
  7. Incorrect Picking Order
  8. Poor Tool Maintenance
  9. Using Lishi Tools on Damaged Locks
  10. Over-Setting Pins
  11. Quick Troubleshooting Cheat Sheet
  12. Final Tips & Professional Support
 
 
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1. Applying Too Much Tension (The #1 Mistake)

 
Consequence: Pins bind tightly, making picking impossible. The delicate picking tip will bend or break permanently.
 
Why it happens: Many beginners assume more tension equals faster results. In reality, Lishi tools require only light, fingertip pressure.
 
Solution:
 
  • Use only the pressure you would use to hold a pen while writing
  • Rest your wrist on the door for stability
  • If pins won't move, release tension slightly and try again
  • Practice on transparent locks to develop the right feel for tension
 
Pro Tip: If you can feel the individual pins clicking as you lift them, your tension is correct. If nothing moves, you're applying too much.
 
The #1 cause of broken Lishi tools – only use the pressure you would use to hold a pen
 
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2. Using the Wrong Tool for the Keyway

 
Consequence: Tool gets stuck in the keyway, breaks, or permanently damages the lock cylinder.
 
Why it happens: Lishi tools are highly specialized—one tool fits only one specific keyway profile. Even similar-looking keyways require different tools.
 
Solution:
 
  • Always verify the keyway profile before selecting your tool
  • Compare the keyway to the tool's blade profile visually
  • Check the tool's packaging for the exact list of compatible locks/vehicles
  • If the tool doesn't slide in smoothly, do not force it—you have the wrong tool
 
Important: We provide a free Lishi tool compatibility chart with every order. Contact our support team if you need help selecting the right tool.
 
One Lishi tool fits only one specific keyway profile – always verify compatibility first
 
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3. Removing the Tool Before Decoding

 
Consequence: You lose all key bitting information and have to start over.
 
Why it happens: Many locksmiths get excited when the lock turns and immediately remove the tool, forgetting that the decoding function is the biggest advantage of Lishi tools.
 
Solution:
 
  • RULE #1: Never remove the tool after opening the lock
  • Hold the cylinder firmly in the open position
  • Push each lifter arm all the way in and read the depth numbers
  • Record the bitting code before doing anything else
  • Only remove the tool after you have written down the complete code
 
Example: A correct bitting code will look like this: 3-1-4-2-5-3. This code can be used directly to cut a new key on any standard key cutting machine.
 
RULE #1: Never remove the tool after opening the lock – decode first, then record the bitting code
 
 
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4. Using Oil-Based Lubricants

 
Consequence: Oil attracts dirt and debris, which gums up the tool's mechanism over time. The lifter arm will stick and decoding will become inaccurate.
 
Why it happens: Many locksmiths are used to using WD-40 or other oil-based products on locks.
 
Solution:
 
  • Only use silicone spray lubricant on locks and Lishi tools
  • Apply a very light mist—too much lubricant is as bad as too little
  • Clean the tool with a microfiber cloth after each use to remove excess lubricant
  • For heavily soiled locks, use electronic contact cleaner first, then apply silicone spray
  • Only use silicone spray lubricant – oil-based products will ruin your tools over time
 
 
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5. Skipping Lock Preparation

 
Consequence: Difficult picking, increased tool wear, and higher risk of tool breakage.
 
Why it happens: In a hurry to complete the job, many locksmiths skip the simple step of preparing the lock.
 
Solution:
 
  1. Spray the keyway with electronic cleaner to remove dirt and debris
  2. Insert a key blank and work it back and forth to loosen the pins
  3. Apply a light mist of silicone spray
  4. Wipe any excess lubricant from the keyway opening
 
Pro Tip: Taking 30 seconds to prepare the lock will save you minutes of frustration during picking.
 
 
 
<a id="mistake-6"></a>
 

6. Forcing the Tool Into the Keyway

 
Consequence: Bent picking tip, broken lifter arm, or damaged lock pins.
 
Why it happens: The tool doesn't slide in easily, so the locksmith applies more force.
 
Solution:
 
  • Check that you have the correct tool for the keyway
  • Make sure the lifter arm is fully retracted before insertion
  • Rotate the tool slightly as you insert it to align with the keyway
  • If it still won't go in, remove it and clean the keyway again
  • Never use pliers or other tools to force a Lishi tool into a lock
  • If the tool doesn't slide in smoothly, you have the wrong tool or a dirty keyway
 

 

 
<a id="mistake-7"></a>
 

7. Incorrect Picking Order

 
Consequence: Pins over-set, lock won't open even if all pins appear to be set.
 
Why it happens: Different lock types require different picking orders. Picking from the wrong end will lead to over-set pins.
 
Solution:
 
  • Most automotive locks: Pick from the back of the lock to the front
  • Most residential pin tumbler locks: Pick from the front to the back
  • If one order doesn't work, try the opposite
  • Work methodically, one pin at a time, and don't skip positions
Different lock types require different picking orders
 
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8. Poor Tool Maintenance

 
Consequence: Reduced tool lifespan, inaccurate decoding, and sticking mechanisms.
 
Why it happens: Lishi tools are precision instruments that require regular care, but many locksmiths treat them like disposable tools.
 
Solution:
 
  • Clean the tool after every use with a dry microfiber cloth
  • Apply one drop of light machine oil to the lifter arm pivot point once a month
  • Store tools in their original protective cases when not in use
  • Never drop Lishi tools—precision calibration cannot be repaired
  • Replace tools that show signs of wear or damage
 
 
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9. Using Lishi Tools on Damaged Locks

 
Consequence: Tool breakage and further damage to the lock.
 
Why it happens: Lishi tools are designed for intact, functional locks. Damaged or rusted locks have broken pins or seized mechanisms that will destroy precision tools.
 
Solution:
 
  • Inspect the lock carefully before attempting to use a Lishi tool
  • Look for signs of damage: bent keyway, broken key pieces, or excessive rust
  • For damaged locks, use destructive entry methods or alternative tools
  • If you must attempt to pick a rusty lock, use penetrating oil first and proceed with extreme caution
 
 
<a id="mistake-10"></a>
 

10. Over-Setting Pins

 
Consequence: Pin is pushed past the shear line, lock won't open.
 
Why it happens: Applying too much force when lifting the pins.
 
Solution:
 
  • Lift each pin slowly and gently until you feel a slight click
  • Stop immediately when you feel the click—do not lift further
  • If you suspect a pin is over-set, release tension completely to reset all pins
  • Start over with lighter tension and more gentle lifting
Figure 3.1: Flatland model of a lock
Figure 3.2: (a) Flatland key raises pins
Figure 3.3: (b) Proper key allows plates to slide
 
Stop lifting immediately when you feel a click – over-set pins are the most common cause of failed openings
 
 
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Quick Troubleshooting Cheat Sheet

 
Problem Most Likely Cause Instant Solution
Lock won't open after picking all pins One pin is over-set or under-set Release tension slightly and recheck each pin
Tool won't insert fully Wrong tool or dirty keyway Verify tool model and clean the keyway
Lifter arm sticks Oil-based lubricant or dirt buildup Clean tool with electronic cleaner and apply silicone spray
Decoding numbers are inconsistent Cylinder not held firmly in open position Hold the tension handle steady while decoding
Pins won't click Too much tension Reduce tension to fingertip pressure
Tool bends during use Forcing the tool or using on damaged lock Replace tool and use correct technique
 
 
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Final Tips & Professional Support

 
  1. Practice makes perfect: Spend time practicing on transparent practice locks before working on real jobs.

  1. Invest in genuine tools: Counterfeit Lishi tools have poor tolerances and break easily. Always buy from authorized distributors like TheLockLab.

Two colorsTwo colors

  1. Start with easier locks: If you're new to Lishi tools, start with simple residential locks before moving on to automotive locks.
  2. Don't get frustrated: If a lock isn't opening, take a break and come back to it with fresh eyes.
 

Need More Help?

 
As an official authorized Lishi distributor, we provide free professional technical support to all our customers. If you have any questions about using your Lishi tools, or need help troubleshooting a specific problem:
 
📧 Email: industrial.hub.supply@gmail.com
 
💬 WhatsApp: +86 176 2928 6687
 

Related Resources

 
 
 
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