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Ideal for Forestry and Arboriculture.

The Jonko is available with a spiral lanyard and Ropeslider for easy attachment to your harness. The spiral lanyard is 35 cm long and can extend to 125 cm – perfect to connect to your ratchet wrench [not included]. The Jonko cone wedge has small grooves on the inside of the female 1/2 inch socket to secure the Jonco to a ratchet wrench with ball pin interface.

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No more struggling & hitting with heavy hammers.

The Jonko cone wedge has been designed specifically for use within a tree and to fell small to medium size trees with a slight back-lean. Following one year of field testing a variety of different profiles & thread designs we managed to come up with a versatile & highly functional product – you are sure to find a use for it in a broad range of applications.



Light – this cone wedge only weighs 495 gram/17.1 oz, this is the same as a conventional [large] aluminium wedge.

Strong – made to handle an impact driver over and over again, its made of high grade steel for repeat use.

Easy to Use – the Jonko can be easily used with one hand with a ratchet/socket wrench or an impact driver [high torque].



Origin – Made in Holland

Material – High grade chrome steel designed for heavy duty tools.

Size – 160 mm x 38 mm

Connector – 12 mm [1/2 inch] with secure ball-pin interface

Weight – 495 g [17.1 oz]

Compatability – 1/2 inch bit Ratchet/Socket wrench or high torque Impact wrench


Highly versatile – besides forestry and arboriculture the Jonko is invaluable in other sectors too. Emergency Services, Demolition, DIY, Wood Splitting – the list goes on.


Use the Jonko wisely and always wear your PPE.


Additional information

Weight 0.65 kg
Dimensions 19 x 5 x 5 cm

jonko+spiral+ropeslider, Jonko, spiral+ropeslider


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