Deep hole drilling tools

For the deep hole drilling tool, there are some attentions that need to be considered:

1)      The clamping of workpiece must be tight and reliable, and the center of workpiece should coaxial with the lateral moving gun drilling machine center. Also you can process the workpiece’s outside diameter and surface to make a positioning surface.

2)      When processing the long shaft parts, there should be a fixed center frame on the workpiece and drill stem sides. Besides, there also should be 1 to 3 movable drill stem support frame.

3)      The center hole of workpiece should be smaller than the hole diameter of gun drilling tools. If the hole diameter of center can’t be changed, you can use the special guide sleeve.

4)      When starting deep hole processing, there should be a guide sleeve, the inside hole diameter of guide sleeve should match with the hole diameter of carbide drill bit，and the guide sleeve’s inside hole procession should grind to IT6. When the workpiece is short or the hole straightness requirement is not high, we can also consider to process a guide hole on the workpiece.

5)      Guide sleeve belongs to wearing parts, when the wearing capacity is bigger than 0.02mm, replace with the new guide sleeve, and the material of guide sleeve should be carbide guide sleeve. 

If any more question, please feel free to contact us. 

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