Dual-Helix construction with twin cutting edges for faster and smoother drilling action, even through nail-embedded timbersFull body, dual induction heat treatment ensures durability, minimizes warping and delivers long lasting performanceRe-sharpenable for extended tool life
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Primary Spec Sheet
https://static.graybarcanada.com/Generic/ideal/pdf/documents/6313324c668948e65502241cb6ddd46ad898b7e2.pdf