1/4"SD Britool Hallmark Lock-On Adaptor - SEL33

The Britool Hallmark 1/4" Square Drive Lock-On Adaptor (SEL33) is a compact and practical solution for securing sockets during use. Measuring approximately 40mm in length, this adaptor can be used on its own or in conjunction with Britool extension bars to enhance versatility in tight or awkward working conditions.

The lock-on mechanism is designed to hold the socket firmly in place by securing the retaining ball, significantly reducing the risk of accidental disconnection during use. This makes it particularly useful in applications where access is limited or where dropped sockets could cause inconvenience or damage.

Due to its compact size, the adaptor is not branded, but it maintains the high standards expected from the Britool Hallmark range. Ideal for professional and DIY users alike, it’s a reliable addition to any 1/4" drive tool setup.

The HALLMARK range was developed by Britool in the 80's for the automotive aftermarket. it has been the professional’s choice ever since. Each tool is marked with the Britool hallmark  your guarantee of quality.

The Britool Hallmark guarantee covers against defective materials and/or workmanship when used for the purpose for which they were designed. In the unlikely event that a product fails during normal use, it will be repaired or replaced. The guarantee does not extend to fair wear & tear, moving parts such as ratchet mechanisms, or consumable bits etc.