The surface is not hardened. One piece was little bit picked very probably during shipping. But it was possible to tune it by slight hamering to fit the teeths. Very bad packing for this kind of heavy pieces-just plastic bag with so much space inside. But for the money it is good value with a lot of usage.

The surface is not hardened. One piece was little bit picked very probably during shipping. But it was possible to tune it by slight hamering to fit the teeths. Very bad packing for this kind of heavy pieces-just plastic bag with so much space inside. But for the money it is good value with a lot of usage.

The surface is not hardened. One piece was little bit picked very probably during shipping. But it was possible to tune it by slight hamering to fit the teeths. Very bad packing for this kind of heavy pieces-just plastic bag with so much space inside. But for the money it is good value with a lot of usage.

MUST HAVE for the CNC od any size, including the smaller CNC 3018 like mine!

MUST HAVE for the CNC od any size, including the smaller CNC 3018 like mine!

MUST HAVE for the CNC od any size, including the smaller CNC 3018 like mine!