What Increment Borer would you recommend for Hardwood trees?

[StephF]

Hi, need to get a new increment borer asap. What would you recommend and where would I buy? Have owned a Mattson in past, but is there anything better out there now? Thanks

[StephF]

Been looking at'Haglof', websites give different info on product eg' sizes and bore etc so confusing, not sure which one would suit testing fairly large hardwoods. Past experience found they often broke while using, so anyone got a borer they would recommend.

[daltontrees]

Sorry, can't help because I have never compared mine to any other brand. Basically Sorbus sell Haglof and Mattson. Mine's a Suunto and works perfectly well. They all seem to look and work the same. Just need to decide on 3 thread vs 2 thread depending on whether you are doing mostly hardwoods or softwoods. Ideally one of each.

[StephF]

thanks, I looked at all the sites last night I could find selling Haglof and Mattson borers, and only 1 site offered 2 or 3 thread, Sorbus site says the 2 thread is best if you are doing both? I suppose I've just got to phone around instead of looking on shop sites to compare prices, only 1 site (sorbus) stated exactly the product was, ie 2 0r 3 thread, and the bore size, and that only of one brand, Haglof.

[daltontrees]

I think a 2 thread is best for general purpose. A 3 is faster in soft wood, that's the only reason really to use it.

[Tony Croft aka hamadryad]

go for a 5mm bore, longer the better in length mines a 600mm.

 

they are hardened hence the breakages but if you maintain straight when torqing it up and never over stretch the mettle twisting it wont break

 

think mines a hagglof

[StephF]

go for a 5mm bore, longer the better in length mines a 600mm.

 

they are hardened hence the breakages but if you maintain straight when torqing it up and never over stretch the mettle twisting it wont break

 

think mines a hagglof

 

Thanks for that!

[NI Tree]

neaver used them but there this might help

http://www.grube.de/measuring-equipment/increment-pressler-s-borers.html?p=2

[StephF]

Ordered a Haglof borer today, hoping it arrives before we plan to do the survey; At a School that was not convinced the trees needed work done on them , even though a lot of evidence to the contrary, we agreed to provide more evidence.

Very unusual, schools normally just say 'yes' carry out all finding on the survey, even non priority work.