Features:
100% Brand new and high quality!
Help to cut perfect circles by using these tools
Heat treated carbon steel for long time using.
Perfect for woodworking,wooden cutting.
Exquisite workmanship and it is durable.
It has been through testing standards.

Specifications:
Color:yellow
Hole saws Size:19mm 22mm 29mm 32mm 38mm 44mm 51mm 64mm 76mm 89mm 102mm 127mm
Mandrel Size:9.5/6.35mm
Case Size:21*14.5*3.8cm
Package Size:21.5*15*4cm
Material:carbon steel
 
Please noted that if you cut the hard material such as Aluminum ...you need to use the oil to low the temperature, if not, maybe the drill bit will be broken due to high temperature, please understand 

Package included:
12 x hole saws(19mm 22mm 29mm 32mm 38mm 44mm 51mm 64mm 76mm 89mm 102mm 127mm)
2 x Mandrel
1 x Drive Plate
1 x Hex Key Wrench 2.5mm
1 x Case