Information for Ordering and Using 
           
            
              
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                  1. Machining sizes, hole diameters and materials. 
                    2. Machining type: drilling tapping reaming. 
                    3. Drilling machine type and motor horsepower. 
                             
                Spindle nose of drilling machine                
                
                  
                    | A | 
                    B | 
                    C | 
                    D | 
                    D | 
                   
                  
                    | Dia of quill | 
                    Spindle taper | 
                    Spindle length | 
                    Collar length | 
                    Spindle diameter | 
                   
                  
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                ¡iCaution when using multi-spindle head¡j  | 
              
              
                
                    
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                      Use correct box wrench to tighten or loosen
                        collet. Do not use an open end wrench for
                        this purpose. Failure to comply may cause
                        damage on the collet due to uneven
                        tightening or loosening force or inaccurate
                        chucking of cutting tool.  | 
                      Guide bushing equipped on the workpiece
                        not only upgrades machining accuracy, but
                        also ensure the service life of the spindle. 
                        In case workpiece has uneven heights of
                        surfaces, you need to lower the drill until
                        they touch the various surfaces of the
                        workpiece before tightening the cutting
                        tools. Then you can tighten the cutting
                        tools securely.  | 
                     
                    
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                      When mounting the multiple
                        spindle drilling head, place
                        three leveling blocks under it. 
                        Have them aligned with
                        spindles, and press it until it
                        reaches the main tooth.  | 
                      Minimum distance and maximum diameter diagram.  | 
                     
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