Increment Borers & Hammers

Choice of increment borer model, length, core diameter and threading depends on size of tree and type of wood. for hardwood, 2 threaded borers from the Haglof borer range are recommended. It is also recommended to use the borer starter. The borer starter will allow the borer to penetrate the tree at a straight angle and the risk of breaking the borer will be reduced. For sensitive tree species that are sensitive to decay, the smaller core diameter, the 4.35mm is recommended. In the Mattson borer model range, the smallest diameter of 3.5mm are available in 200mm/8" length. Large core borers and mainly used for wood fiber analyses, for research and on lumberyards. the large core borers, 10 and 12mm are uniquely produced as Haglof Sweden brand in different lengths.