Quick Core Sample
By Benjamen Johnson
If you need to take some quick tree core samples to determine the rate of growth last year, one tool you could use is this Swedish-made increment hammer from Haglof. To take a sample, all you do is strike the tree perpendicular to the trunk and and pull the hammer out. You then eject the core with the steel plunger.
Made from high-quality hardened Swedish steel, the 11-1/2″ hammer takes a 0.157″ (4mm) diameter by 3/4″ long sample from either hard or soft wood trees. A 2″ graduated scale on the shaft of the hammer is graduated in increments in 1/20″ or in millimeters for taking a quick reading in the field.
With an investment of $80 you can start taking some core samples. The ejector and the hollowed tip are replaceable if you damage them and cost $18 and $20 respectively.
Increment Hammer [Haglof]
Increment Hammer [EJ Motiwalla]
Increment Hammer [BenMeadows.com]
September 2nd, 2009 at 3:23 pm
Hmm… file this under things I don’t need but for some reason really want.
September 2nd, 2009 at 7:42 pm
I agree with Jim K. I would probably only use it to see if it really worked but I would keep it out in plain sight so everyone would ask, “What’s that thing?” Then I could show off my extensive knowledge by explaining it to them - but not before saying, “What? You REALLY don’t know what that is?”
September 2nd, 2009 at 11:07 pm
I want to use this instead of a drill. Though, probably and it wouldn’t work so well on dry wood.
October 30th, 2009 at 4:38 am
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