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Undercuttermeaning

(Set includes: 3mm, 4mm, 5mm, 6mm, 8mm,10mm,12mm) The purpose of spot drilling is to drill a hole that will act as a guide for drilling the final hole. The hole is only drilled part way into the workpiece because it is only used to guide the beginning of the next drill process.

Extremely powerful undercutter for spot maintenance. Undercutter bars from 9 to 12 feet in length. Bi-directional, carbide tip chains can cut in either direction to handle undercutting in tight quarters.