Know your Forest Inside and Out! Haglöf Sweden has produced increment borers for over 50 years, and we offer the markets´ largest variety of lengths and core diameters.

The classic increment borer

The increment borer is the classic instrument for fast and reliable results when evaluating age, increment and soundness of trees. Increment borers are also used for decay check-up, pollution control, wood density, chemical penetration control etc.

Haglöf increment borers are available in a wide variety of sizes, lengths and core diameters for all types of wood and trees. Haglöf borers are produced with high quality Swedish Steel with PTFE one-coat on the borer bit to protect against rust and resin and to reduce friction.

The solid borer bit with a barrel shaped tip ensures an easy start and removal from the tree. The extractor is made with stainless steel and metal knobs. The variety of options of sizes and models of our Haglöf Sweden increment borers guarantees the exact right borer for each specific application.

Read more on increment borers here

Download the instructions how to choose, use and take care of the Haglöf Increment borer. 

Accessories

Haglöf Tree Core Reader

The Haglöf Tree Core Reader is a new field instrument developed with the experience from increment borer production for more than 70 years and in cooperation with a leading European forest research institute.

The Tree Core Reader serves to perform field analysis work of tree core samples. By examining the core in the high quality optic lens,  the operator can determine the conditions of the tree, its growth, age and increment, all based on the extracted wood core sample examinations.

Sharpening kit

To sharpen an old increment borer, use this special sharpening kit. The kit contains oil, sand, sharpening stones where one is conical for inside sharpening and beeswax. The wax is used to protect the tip and provide a better glide. The kits are equipped with instructions on how to sharpen the borer. NOTE! Oil and wax can only be shipped to a limited number of destinations and the contents of the sharpening kit may therefore vary from market to market.

Borer Starter

Foldable. Useful for easier boring into the tree and better cores.

When using the borer starter you can prolong the lifetime of your increment borer bit  and also use less effort, especially when taking multiple samples.

Haglöf Sweden recommends using of borer starter when drilling in hardwood!