Mattson 16” Complete Increment Borer, 3-Thread, .200” (5.15mm)

These increment borers are tops in extracting a core of wood for determining growth-rate, age, tree soundness, and chemical penetration*! Each borer features machined brass end caps and extractor cap, plastic-coated handles, and a barrel-shaped tip for easy starting and removal of the borer. 0.202” (5.15 mm) core diameter. Made of quality Swedish steel.