Hickory dowel rods are one of the hardest and strongest dowel rods available. Hickory is a relatively straight grained, high density hardwood with very good machining capabilities and good finishing and painting properties. Hickory dowels tend to be abrasive on tooling.
Bow/Warp Tolerance is +/- 1% of the length of the dowel, per industry standards.
Diameter Tolerance: Dowel sizing tolerances are industry standard +/- .015"