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1.  Unscrew the locking screw of the adjusting slider (5), set the diameter of your 

choice (cm or inches), and then screw the locking screw shut again. You may  
bring the ratchet head (1) into whatever position best suits the cutting that you 
wish to do. 

2.  Open the blade guard (3d), remove the protection cap (5a) and begin cutting your 

circles.

3.  Depending on the material that you wish to cut or on the type of blade you need, 

you can make a choice among the various blades. 

4.  For the cutting of larger circles the extension handle (B) must be used. The 

 maximum size of the circle that can be drawn using this extension handle is  
Ø 50 cm (19.69 inches). 

Operating Instructions

Fitting of the 
Extension Handle 
(B)

Art.No. 

Description 

 

     Image 

Size

770933

 

V-Shaped Blade   

 

 

0,3 x Ø 5 x 12 x 20 mm

770934 

Blade for “Free-Style” Cut   

 

0,3 x Ø 5 x Ø 18 mm

770935

 

Blade for “Perforation Cut”  

 

0,3 x Ø 5 x Ø 18 mm

770936

 

Blade for “Wave Cut” 

 

 

0,3 x Ø 5 x Ø 18 mm 

1.  Remove the end cap (6) by pressing down on the locking mechanism on its back 

side. Insert the extension handle (B) in a parallel position and press the end cap (6) 
down on it again. 

2.  When connecting the handle with the extension handle, remove the pin with the 

connecting bolt (4) and press the rotary compass cutter (A) and the extension han-
dle (B) together in parallel positions; then screw the connecting bolt (4) firmly back 
into place. 

 

  When connecting the two handles, care must be taken to ensure that the handles 

are lying parallel to one another (i.e. that they form no oblique angle when connect-
ed). If this is not ensured, the pushfit connection might suffer damage. The same 
care must be taken when unscrewing.

1.  Take the required blade out of the blade storage at the back side (2) 
2.  For safety reasons the storage lid must always be closed afterward 
3.  Press down on the threaded bolt (3e) and unscrew the locking screw (3a)
4.  When inserting, the gap for the pencil-lead in the spring washer (3b) must be 

placed precisely onto the threaded bolt (3e). The head of the threaded bolt must, 
during this operation, be on the side of the blade guard (3d).

5.  When inserting the pencil lead, the blade guard (3d) must, for safety reasons, be 

in the closed position. It is not absolutely necessary to remove the blade. You need 
only unscrew the locking screw (3a), insert the pencil lead into the gap designed to 
receive it (3c) and then screw the locking screw down again. 

Changing the Blades

Range of Blades

Rotary Compass Cutter

After using the rotary 
compass cutter care 
must be taken, for 
safety reasons, that 
the protection cap (5a) 
is put back in place and 
the blade guard (3d) is 
closed.

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