The SircleBind CB-230 is the manual version of the CB-3000 3-hole and plastic comb binding machine. Like its electric counterpart, the is a heavy duty machine suitable for high volume in large office environments. It features an open punch throat and a built-in margin guide for the accommodation of various paper sizes. These components, along with the built-in margin guide, provide the user with an easy-to-use machine that allows for greater efficiency in the workplace. 
 
SircleBind CB-230 Binding Machine Specifications:
 
Binding Style: Plastic Comb (19 ring)
Punch Style: 3-Hole & Plastic Comb
Operating Method: Manual Punch and Bind
Punching capacity: 20 sheets (20# paper)
Max. Page Size: Letter w/Open Throat
Max. Bind: 2" (51 mm)
Disengageable pins: No
Margin Guide: Adjustable
Paper Load: Vertical
Net Weight: 28 lbs
Machine Dimensions: 17" x 19" x 7"
Warranty: 2 year Manufacturer