- [Heat Treated] Square countersink bit has been heat treated for a high hardness and incisive square chisel.
- [5 Specifications] This woodworking square drill bit kit has 5 specifications and they are 6.4mm 1/4in, 8.0mm 5/16in, 9.5mm 3/8in, 11mm 7/16in, 12.7mm 1/2in with correspond storage box.
- [High Speed Steel Material] The square drill bit kit is made of excellent high speed steel material with exquisite accurate workmanship.
- [Wide Application] Square countersink drill bit not only will be applied for woodworking but also can be applied for home decorating or construction site.
- [Labor Saving] These square countersink drill bit can be used with electric drill or hammer and can be labor saving for the users.