8Pcs Hole Saw For Wood

8Pcs Hole Saw For Wood 
*High carbon steel,variable pitch teeth 
*Teeth constructed fromhardened heat 
  with hardness HC46-53
*Can cut holes up to 25mm 
*Kit ccontaining one of eachfor the following: 2-1/2"(64mm), 3"(76mm),3-1/2"(89mm),4"(102mm),5"(127mm)