Irwin 1882792 Tapered Countersink Drill Bit Set, 8 Pieces Set 45 Deg / Wrot and bit storage that attaches

and bit storage that attaches to cord

For fiberglass

Outer diameter up to 600mm

300 psi max working pressure with 900 psi burst strength for toughness and safety

Irwin 1882792 Tapered Countersink Drill Bit Set, 8 Pieces Set 45 Deg / Wrot and bit storage that attachesHighlights: Tapered drill with widened flutes for drilling fast, clean pilot holes Adjustable four cutter counter bore cuts and clears chips quicker for fast, smooth counter sinking Counter bore attaches to flats on shank with two hex screws for a secure fit and can be adjusted for controlled pilot hole depth 1 4" quick change shank reduces slipping in standard chucks and is compatible with all 1 4" quick change chucks and impact drills Set includes: