Fast, clean drilling: Milled flutes with a deepcut spiral remove material quickly and carry chips out of the hole, reducing clogging and keeping drilling smooth as you go. Coolantfriendly design: The spiral flute geometry allows coolant or cutting fluid to reach the cutting edge while carrying chips away, helping control heat and improving performance on long or continuous holes. Durable construction: Made from speed steel for long service life and reliable performance across a variety of drilling applications. Easy to use and versatile: Straight shank and long length provide stable, easy handling and allow use in most electric drills and drilling machines without adapters. Better surface finish and longer tool life: Special surface treatment retains cutting fluid, reduces chip welding and builtup edge, and produces cleaner hole walls for improved results and longer bit life. Compatibility and attributes: Material: speed steel (HSS) Shank: Straight shank for standard chucks Length: Long drill bits for deep holes Function: Spiral flute twist drill design for efficient chip removal and coolant flow Practical applications (examples): Carpentry and cabinetry: Drill deep dowel, shelf pin, or bolt holes through thick boards and panels with consistent chip evacuation. Electrical and plumbing roughin: Create long pilot holes for running wires, conduit or sleeves through framing without frequent bit clearing. and construction tasks: Make deep mounting or anchoring holes in timber and generalpurpose materials where clean holes and bit longevity matter. What this solves: Prevents frequent stoppages for chip clearing Reduces overheating and edge buildup during long runs Improves hole quality and extends bit life Fits common drilling equipment for straightforward use these long spiral twist drill bits when you need deeper, cleaner holes, reliable chip removal, and a durable HSS bit that works in most standard drill setups.