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The Extendable - Infinity ~ from £22 ‘The Extendable - Infinity’ is a special telescopic section which offers the ability to fine-tune the required length of your letterbox tool quickly and efficiently to any length covered by the sections range. As the name suggests, the ‘Infinity’ is infinitely adjustable, with no restrictions. To extend the section, all that is required is to loosen a thumbscrew, slide the section to the desired length and re-tighten, - a process taking seconds. Once tightened, the sections will not collapse, or separate. The ‘Infinity’ may be fitted between our ‘Rattler’ handle, and one of our letterbox tool attachments. Additionally, extra sections may also be added. It is also compatible with the original budget letterbox tool. The ‘Infinity’ is extremely strong, utilising our own ‘SureLock’ metal connector button clip system (protected by Design Right, Intellectual Property Rights) and once locked into place, will not separate. The ‘Infinity’ is available in four lengths, which may be purchased individually Small. Approx 200mm closed, approx. 300mm extended. £22 Medium. Approx 300mm closed, approx. 500mm extended. £27 Large. Approx 400mm closed, approx 700mm extended. £32 Extra Long. Approx 600mm closed, approx. 1100mm extended. £38
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Outside-In Lock Tools - Professional Tools for Locksmiths


The Extendable ~ £143.99 ‘The Extendable’ has been designed from the ground up, to be the ultimate letterbox tool when used with ‘The Rattler’ and our other accessories. Experienced Engineers will tell you that square section exhibits far greater rigidity and strength, than comparable round section. These are the qualities that are absolutely necessary for a superior Letterbox Tool. It has unique features found on no other letterbox tool, including the ‘SureLock’ system, for positive, strong and quick joining of letterbox tool sections. The connectors are metal, which means a superior joint which has negligible flex even when fully extended up to over 6 feet tall. Low-level letterboxes are no longer a problem, because locks are now easily within reach. Our unique connectors also allow for a ‘pulling’ motion which will not separate the sections. ‘The Extendable’ sections are able to be extended by approximately 35mm per connection, which can be a real time- saver, without compromising strength. ‘The Extendable’ is the perfect companion for ‘The SideWinder’ and ‘The Rattler’, making letterbox bypasses swift and efficient. Now includes a 200mm Extendable Infinity
Locksmiths Tools Letterbox Tool
The ultimate Letterbox Tool, when added to “The Rattler” and our other accessories. Metal connectors, mean no bending or unwanted flex. Extends to over 6 feet!
The Extendable - £143.99

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Professional Locksmiths Tools since 2010. Made in the UK.
Outside-In Lock Tools - Professional Tools for Locksmiths
All the Trade Shows have been cancelled this year, in order that Locksmiths don’t miss out on the usual great offers, we have reduced the price on most of our range of tools for the duration of COVID 19 restrictions.
The Extendable - Infinity (Unique adjustable-length Sections) Go from this....... .......to this, in seconds!
Compatible with the Souber (RTM) Letterbox Kit

The Extendable Infinity

Celebrating 10 Years of Outside-In Lock Tools!