12Pcs Hole Saws: 19mm(3/4''), 22mm(7/8''), 25mm(1''), 29mm(1-1/8''), 32mm(1-1/4''),38mm(1-1/2''),                                                44mm(1-3/4''), 51mm(2''),  57mm(2-1/4''), 64mm(2-1/2''),76mm(3'')

1Pc Small Arbor:  1/4'' Three-Flat Shank with 6mm Pilot Drill Bit  for Dia.19mm to 31mm Wood Hole Saw

1Pc Big Arbor:      3/8'' Three-Flat Shank with 6mm Pilot Drill Bit for Dia.32mm to 152mm Wood Hole Saw

1Pcs Hex Key:     2.5mm               

1.Made from high quality, hardened Carbon steel for added durability,enabling them to be suitable for soft and hard wood, plasterboard.

2.Optimized Variable pitch and positive rake tooth design, provides powerful and efficient cutting.

3.High precision, smooth cutting edges, especially impact resistance, wear resistance, cutting perfectly smooth round hole.

4.Pilot bit with 118º split point for fast, skate-free penetration.

5. Increased wall thickness improves durability and minimizes tooth loss.

6.The wide slots placed low on each hole saw and multiple leverage points to make it easy to work plugs out with a screwdriver.

7.For use with corded and cordless drills.