1) 6 1/8 blue drill bit
2)size:From 2 7/8 to 26
larger sizes for hole opener bit ,reamer bit
3)material;tungesten carbide

1) 6 1/8 blue drill bit
2)size:From 2 7/8 to 26”
 larger sizes for hole opener bit ,reamer bit
3)material;tungesten carbide

4)packing:wooden case or steel case

5)market:Canada, USA,Middle east ,Africa,Europe