13Pcs HSS Drill Bit: 1.5, 2, 2.5, 3, 3.3, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5mm

7Pcs Nut Drivers: 5, 6, 7, 8, 9, 10, 11mm     5Pcs Wood Flat Drill: 10, 13, 16, 19, 22mm

4Pcs Masonry Drill Bit: 3, 5, 6, 10mm          4Pcs Hole Saw: 32, 38, 45, 54mm

8Pcs 50mm CRV Bit                                      4Pcs 38mm CRV Bit

2Pcs Screw Finder                                         1Pcs Hole Saw Adapter

HSS Drill Bit: HSS

Masonry Drill Bit: Body: Carbon Steel          Tip: Tungsten Carbide

Wood Drill Bit: Carbon Steel

HSS Drill Bit: Rolled & Polished

Masonry Drill Bit: Milled

HSS Drill Bit: Type N Regular Flute

Masonry Drill Bit: R Flute

HSS Drill Bit: Titanium Coated

Masonry Drill Bit: Nickel Plated

Wood Drill Bit: Bright

1. For metal, pvc and plastic drilling - HSS drill bits (made from High Speed Steel)
2. For masonry, wall, glass and tile drilling - masonry drill bits (the shank is made from carbon steel or chrome steel, the tip is made from tungsten carbide)
3. For wood drilling - brad point drill bits, flat drill bits and auger bits (usually made from carbon steel, sometimes made from HSS steel for special purpose)

4.Whether it’s a home improvement job or a more complex building project, the set giving you a variety of tools for a multitude of DIY tasks.

5.A combined set with drills of various types (for wood, metal, concrete) of the most common sizes,It is designed for household use.