Offered as a set for the first time, these three tools offer terrific value. The Drill Bit Set features multiple copies of the smallest and most common bit sizes. Includes 160 titanium-coated, high speed steel bits. Works for all woods and soft metal in 14 sizes from 3/64” to 3/8"". Use the Flex Shaft with Chuck with any portable power drill. The 54"" length lets you easily work a distance away and the common 3/8"" chuck works with a wide variety of attachments, grinding bits, sanding disks, etc. Chuck will hold bits up to 3/8"" diameter. Forward rotation only. The Portable Drill Guide Jig gives you drill press control with any hand held drill. Simply chuck your drill to the 3/8"" shaft, insert the bit, and go to work. Integral V-guides for drilling round stock; depth stop included. Be ready any drilling challenge.