An Extra Long Drill Bit Set !5pc. high speed steel drill bit set. Each bit is 12" long. Extra long 12" drill bit set is perfect for boring through posts, timbers, or decking lumber. Invaluable for electricians, plumbers, and home theater installers. Durable High Speed Steel gets the job done fast.Includes the following:1/8", 3/16", 1/4", 5/16", 3/8"This item features a 60-day money back satisfaction guarantee, not including bits broken or damaged due to abuse.