Your DIY projects just got easier with the Terratek 150 Piece Drill Bit Set. It includes bits for drilling everything from wood, metal, masonry to plastic and more. With this drill bit set, you can hang photos, install shelving for extra storage or new hardwood floors. They are constructed and designed for long life and high usage so you will get years of projects completed. These general purpose drill bits can be used with a cordless drill for home improvement and general maintenance projects around the house and so much more. 34 x HSS twist drill bits: 3 x 1.0, 1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4mm. 1 x 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 9.0, 10mm. 4pcs Flat wood drill bits: 10, 13, 16, 19mm. . 8pcs Wood drill bits: 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10mm. . 11pcs Nut driver bits: 5.0, 5.5, 6.0, 6.0, 7.0, 8.0, 9.0, 10, 11, 12, 13mm. . 8pcs Allen Keys: 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 5.5, 6.0mm. . 68pc 25mm Screwdriver bits: . 10pcs Slotted: 2 x 3.0, 4.0, 5.0, 6.0, 7.0mm. . 17pcs