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Twinbore

Standard and Step Boring

For Standard Boring two Standard Insert Holders are set to identical dimensions both radially and axially.

The insert holders can be set to cut the same diameter, which permits machining twice as fast as conventional boring. Diameter changes are quickly made by adjusting screws which provide lateral movement of the insert holder.
For Step Boring arrangement on Standard Insert Holder and one Step Insert Holder are required. The Step Boring Insert Holder will set up approximately .028”/0.7mm behind the standard (Lead) Insert Holder.

The leading insert cuts at one diameter and the following insert cuts a larger diameter. 

 
Twinbore Tooling

 Diameter  Twinbore Head  Insert Holder x2  Adapter  More Info
 28-36 MM  ZS20MTP28-180  MTP28-***  20MM Holder  Click here to download PDF
 MTP28-100  ****-ADE2220-
 36-50 MM  ZS25MTP36-182  MTP36-***  25MM Holder  Click here to download PDF
 MTP36-100  ****-ADE2220-
 MTP36-160
 50-75 MM  ZS32MTP50-215  MTP50-***  32MM Holder  Click here to download PDF
 MTP50-80  ****-ADE2220-
 75-105 MM  MTP75-80  MTP75-*** ****-ADE2248-  
 105-135 MM  MTP105-80
 135-190 MM  MTP135-85  MTP135-***  ****-ADE3282-  Click here to download PDF
 190-245 MM  MTP190-85
 245-300 MM  MTP245-85
 190-245 MM  MTP190-120  MTP135-***  Adapters to Din2202 
 with 60 MM location  diameter
 Click here to download PDF
 245-300 MM  MTP245-120  MTP135-***
 300-355 MM  MTP300-125  MTP135-***
 355-520 MM  MTP355-160  MTP135-***
 520-685 MM  MTP520-160  MTP135-***
 685-850 MM  MTP685-160  MTP135-***
 850-1015 MM  MTP850-160  MTP135-***
*** =Insert style **** = Taper 

 
 
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