6X Blue Groove Wood Bits - 3 pieces (22, 25 and 32 mm). Full screw tip - for ease of use and pull through. Cutting spurs - for clean holes with minimal 'break out'. 'Tri-flute' design - for faster chip ejection. Tapered flute - for less binding and ease-of-use. Full length heat treatment - for extra durability. 4X Blue Groove Flat Bits - 5 pieces (12, 16, 18, 20 and 22 mm). Increased relief angle - from 12?í to 17?í. Parabolic scoop - optimizes control and removal of wood chips. Patented groove point and cutting edge - cutting edges 'cut' (do not scrape) the wood 4X faster. 10% larger shank - added durability.
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