HAGLOF INCREMENT BORER

Length

Borers are available from 100 mm or 4” up to 1000 mm or 39”.
For optimal penetration depth, the borer bit should be approximately one half to three quarters of the tree’s diameter.

Core Diameter

Standard core diameters are 4.3 mm or 5.15 mm (0.169” and 0.200”).
10 and 12 mm diameter borers are available in assorted lengths and are mainly used for quantitative analyses where large samples are necessary.

Threading

Borers are available as either 2 or 3-threaed borer bit. 2-threaded borers are recommended for hardwood. 3-threaded borers are the most popular, since they will be easier to work with and engage faster in the wood.

Borer tip

The borer tip with thread has an unique convex arc-shape to easily penetrate and cut the tree fibre.

Coating

The increment borer bits are treated and protected with PTFE-coating which reduces friction and protects against corrosion.

Extractor

The extractors are made of stainless steel and designed to extra easily pull out wooden cores.

Complete increment borer

A complete increment borer includes the handle, a borer bit and an extractor in selected length and model. Borer bits and extractors can be purchased separately.