
| 
 model  | 
 Number of slots  | 
 Shaft hole  | 
 Inner hole  | 
| 
 120×2B air  | 
 2  | 
 10-28mm  | 
 28mm  | 
| 
 130×2B air  | 
 2  | 
 10-28mm  | 
 28mm  | 
| 
 140×2B air  | 
 2  | 
 10-30mm  | 
 30mm  | 
| 
 150×2B air  | 
 2  | 
 10-38mm  | 
 38mm  | 
| 
 160×2B air  | 
 2  | 
 12-38mm  | 
 38mm  | 
| 
 180×2B air  | 
 2  | 
 15-38mm  | 
 customizable  | 
| 
 200×2B air  | 
 2  | 
 15-38mm  | 
 customizable  | 
| 
 220×2B air  | 
 2  | 
 16-38mm  | 
 customizable  | 
| 
 250×2B air  | 
 2  | 
 16-42mm  | 
 customizable  | 
| 
 280×2B air  | 
 2  | 
 18-42mm  | 
 customizable  | 
| 
 300×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 320×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 350×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 380×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 400×2B straight  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 400×2B round  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 450×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 500×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 600×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
Note: Tolerance of outer diameter: 2-3mm, support non-calibration.

| 
 model  | 
 Number of slots  | 
 Shaft hole  | 
 Inner hole  | 
| 
 120×2B air  | 
 2  | 
 10-28mm  | 
 28mm  | 
| 
 130×2B air  | 
 2  | 
 10-28mm  | 
 28mm  | 
| 
 140×2B air  | 
 2  | 
 10-30mm  | 
 30mm  | 
| 
 150×2B air  | 
 2  | 
 10-38mm  | 
 38mm  | 
| 
 160×2B air  | 
 2  | 
 12-38mm  | 
 38mm  | 
| 
 180×2B air  | 
 2  | 
 15-38mm  | 
 customizable  | 
| 
 200×2B air  | 
 2  | 
 15-38mm  | 
 customizable  | 
| 
 220×2B air  | 
 2  | 
 16-38mm  | 
 customizable  | 
| 
 250×2B air  | 
 2  | 
 16-42mm  | 
 customizable  | 
| 
 280×2B air  | 
 2  | 
 18-42mm  | 
 customizable  | 
| 
 300×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 320×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 350×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 380×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 400×2B straight  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 400×2B round  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 450×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 500×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
| 
 600×2B air  | 
 2  | 
 22-42mm  | 
 customizable  | 
Note: Tolerance of outer diameter: 2-3mm, support non-calibration.