DuoBore 821/821D Rough boring tool with two insert design

Tool mounting

Productive boring

Requirements:

• 1 adaptor
• 2 slides

1. Retract setting screws as far as possible by turning them counterclockwise.
2. Fit slides to adaptor. Pin on slide must enter slot in adaptor.
3. Place washers on clamping screws.
4. Push slides as far as possible towards the center of the adaptor. Tighten the clamping screw finger tight, so that the slides can be easily set without tilting.

Step-boring

Requirements:

• 1 adaptor
• 2 slides
• 1 shim

1. Retract setting screws as far as possible by turning them counterclockwise. 
2. Place shims on one of the two support faces on the adaptor.
   Note: Total depth of cut should be divided into two equal parts to keep the tool as balanced as possible.
3. Fit slides to adaptor. Pin on slide must enter slot in adaptor.
4. Place washers on clamping screws.
5. Push slides as far as possible towards the center of the adaptor. Tighten the clamping screw finger tight, so that the slides can be easily set without tilting.

Single-edge boring

Requirements:

• 1 adaptor
• 1 slide
• 1 cover

1. Mount cover on the support face.
   Note: The cover has a location pin which has to fit into location hole in adaptor.
2. Retract setting screws as far as possible by turning them counterclockwise.
3. Fit slides to adaptor. Pin on slide must enter slot in adaptor.
4. Place washers on clamping screws.
5. Push slides as far as possible towards the center of the adaptor. Tighten the clamping screw finger tight, so that the slides can be easily set without tilting.

The two slides are set to same diameter and height.

The two slides are set to different diameters and heights.

Only one slide is used.

Tool setting

Productive boring

1. Mount inserts.
2. Place adaptor in tool pre-setter.
3. Set desired diameter on tool pre-setter.
4. Rotate adaptor until largest diameter on selected slide is found.
5. Lock this position.
6. Turn setting screw clockwise until insert nose radius reaches set diameter.
   Note: Setting screw can only be used for setting from smaller to larger diameter.
7. Tighten clamping screws.
8. Repeat for slide 2.
9. Tighten the clamping screws. See handling instruction below to get the recommended tightening torque for your boring tool (can be done outside tool pre-setter if needed).
10. Check diameter and length of tool in the tool pre-setter. If possible, transfer tool data to machine control system.

Step-boring

1. Mount inserts.
2. Place adaptor in tool pre-setter.
3. Set desired diameter on tool pre-setter for smallest diameter.
4. Locate slide with shim.
5. Rotate adaptor until largest diameter on selected slide is found.
6. Lock this position.
7. Turn setting screw clockwise until insert nose radius reaches set diameter. Note: Setting screw can only be used for setting from smaller to larger diameter.
8. Tighten clamping screws.
9. Repeat for slide 2 but set desired final diameter on tool pre-setter.
10. Tighten the clamping screws. See handling instruction below to get the recommended tightening torque for your boring tool (can be done outside tool pre-setter if needed).
11. Check diameters and lengths of both slides in the tool pre-setter. If possible, transfer tool data to machine control system.

Single-edge boring 

1. Mount inserts.
2. Place adaptor in tool pre-setter.
3. Set desired diameter on tool pre-setter.
4. Rotate adaptor until largest diameter on selected slide is found.
5. Lock this position.
6. Turn setting screw clockwise until insert nose radius reaches set diameter.
   Note: Setting screw can only be used for setting from smaller to larger diameter.
7. Tighten the clamping screws. See handling instruction below  to get the recommended tightening torque for your boring tool (can be done outside tool pre-setter if needed).
8. Check diameter and length of slide in the tool pre-setter. If possible, transfer tool data to machine control system.

The two slides are set to same diameter and height.

The two slides are set to different diameters and heights.

Only one slide is used.

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Handling instruction (PDF)