NEWS SPARROWS TENSION TOOLS EXPLAINED: WHICH ONES TO USE AND WHEN
Sparrows Tension Tools Explained: Which Ones to Use and When
5 February 2026
When it comes to lock picking, one thing matters more than anything else: tension. You can have perfect technique and the best picks available, but without proper tension control, you’re guessing. The right tension tool gives you feedback, stability, and repeatability. The wrong one fights you every step of the way.
That’s why Sparrows builds a range of tension tools, each designed for a specific job. From tight Euro keyways to oversized plugs and tubular locks, there’s a tool for that. Let’s take a look at the range and how to choose the right tension tool for the lock in front of you.
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Precision Pry Bars
Sparrows Heavy .05” Pry Bars - Set of 2 (TOK). Best for: Standard to slightly wide keyways. Precision with extra stability.
These bars hit the sweet spot between thin and heavy. The snug fit locks onto the core and can give you sharper feedback.
They shine when working false sets and security pins where small tension changes matter.
Use these when thin bars feel too light, but thicker bars won’t fit.
Bonus tip: Details matter when tension gets delicate. Toothed bars bite into the keyway and resist slipping.
Sparrows MANTIS Tubular Tension Tool
Best for: Tubular locks Why you want it: Proper tension on a round plug
Tubular locks don’t fail because of pins; they fail because tension is hard to apply. The MANTIS grips the centre plug and delivers smooth rotational tension so you can work pins in a clockwise pass.
Same picking fundamentals. The right tool for a different lock.
Sparrows Tension Wheel - Brass
Best for: Consistent tension, electric pick guns, stubborn locks. Why you want it: Set tension once and stop chasing it.
Sparrows Level 1 Tension Set - 6-piece Tension Set
The tension set consists of 6 different wrenches in two different shapes. Each shape consists of 3 different widths to ensure the best possible fit for tension control.
Level One Tension Set includes:
- 3 x Z-Bend Tension Wrench 3" (0.095”, 0.105”, 0.127” widths).
- 3 x Twist Tension Wrench 3.25" (0.095”, 0.105”, 0.127” widths).
Sparrows Level 2 Tension Set - 6-Piece Tension Set
The tension set consists of 6 different wrenches in two different shapes. Each shape consists of 3 different widths to ensure the best possible fit for tension control.
Level Two Tension Set includes:
- 3 x L-Shaped Tension Wrench 3.25" (0.095”, 0.105”, 0.127” widths).
- 3 x Twist Tension Wrench 4" (0.095”, 0.105”, 0.127” widths).
Build Control Into Every Pick
If there’s one thing to take away from all of this, it’s simple: tension does the heavy lifting. The better your tension control, the clearer the feedback, the cleaner the sets, and the faster the open.
Sparrows gives you a tension tool for every situation, but the goal stays the same every time: get the best fit possible. Use thin bars for tight Euro keyways, step up to heavier bars when the keyway demands it, grab the .079” bars when the lock has too much space, and switch to the MANTIS when the lock goes tubular. If you want repeatable tension every attempt, the Tension Wheel takes the guesswork out completely.
Build your kit around control, not quantity, and the locks will start opening a lot more often.
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