Product Name
Countersink Drill Bit Set
Product Material
high speed steel 4241
Product process
Titanium plating on the surface
Product specification
6mm, 8mm, 9mm, 12mm, 16mm, 19mm
Product packaging
OPP plastic bag
Packing box size
60*50*20mm
Product use
used for opening and chamfering of such as wood and plastic boards
Product features
low resistance to sharp edge, high drilling efficiency
