Increment Borers for Tree Age Determination and Growth Analysis
The Swedish increment borer is the gold standard tool for non-destructive tree sampling. CSP Forestry carries professional increment borers used by foresters, researchers, and ecologists to extract wood cores from standing trees for age determination, growth rate analysis, and wood quality assessment. Our borer selection includes various bit lengths and diameters to accommodate different tree species and sampling objectives. Each borer consists of a hollow bit, handle, and extractor, with replacement bits available to extend the life of your investment.
Pair your increment borer with borer hammers for efficient extraction in dense or rot-free wood. Complete your field measurement kit with diameter tapes, clinometers, cruiser vests, and tallying supplies from CSP Forestry. We carry top brands including Haglof for professional-grade measurement instruments.
Frequently Asked Questions
How does a Swedish increment borer work?
An increment borer is screwed into the tree to the pith, then a thin wood core is extracted. The core is then counted or measured in a lab to determine tree age and annual growth increments — without cutting down the tree.
What borer lengths do you carry?
We carry increment borers in standard lengths from 5 to 24 inches, in both 5mm and 12mm core diameters to suit different tree sizes and sampling purposes. See our full forest measurement supplies for all available options.
Do I need a special hammer for increment borers?
We carry increment borer hammers (Pressler hammers) designed to drive stubborn borers into dense or resinous wood. Using the proper hammer prevents damage to the borer threads and makes extraction easier.
What other tree measurement tools complement increment borers?
A complete forest measurement kit typically includes increment borers, diameter tapes, clinometers, angle gauges, tree calipers, and cruiser vests.
