Keep It All Well-organized - The kit case had all the pieces in recesses of the foam, which can hold the bits in place to keep them from moving around. Protect the bits from damage and extend their lifespan..5 Pcs 1/4" Hex Shank HSS Metal Drill Bits for Steel - With titanium coating, it has great heat/ corrosion/ rust resistance. The 118° split point on step drill ensures precise drilling. Suitable for drilling holes on Iron/Plate/Aluminum/Wood/PVC. Not recommend for hard and brittle materials such as stainless steel, glass, tile floors, walls etc..7Pcs 3-Pointed Counter Sink Bits for Woodwork- Made of high carbon steel with high hardness & abrasion resistance, large chip flute and five edge chamfers can drain sawdust faster and easier. With 1pc hex L-wrench, you could easily remove and adjust counter sleeve depth and drilling depth..Portable and Easy to Carry - Easy organization and quick access to the necessary drill bit. countersink drill bit set for wood comes in a convenient plastic case for easy transport and storage. The durable latch keeps tools secure..Comprehensive Converage All Most Commonly Used Sizes - Easily work on wood, metal, plastic boards and PVC pipes using hand, bench and electric drills, from crafting furniture and wooden toys. Perfect gift for woodworker, Dad, DIY lover, home hobbyist..WARM TIP 1.All the bits are factory oiled for extra step in quality control, it helps to prevent air and moisture contact to reduce rust and corrosion. So they arrive smelling much like a machine shop and slightly sticky. 2.For your safty, please make sure you wear SAFETY equipment such as a face shield (or Full Coverage Goggles) and gloves.