General-purpose needles and stainless steel needles can be further machined to make oval mouth needles.
| Gauge | Color | ID(mm) | OD(mm) | 12.7mm | 25.4mm | 38.1mm |
| (1/2″) | (1″) | (3/2″) | ||||
| 14G | Olive | 1.55 | 2.1 | OT 14050 | OT 14100 | OT 14150 |
| 15G | Amber | 1.35 | 1.8 | OT 15050 | OT 15100 | OT 15150 |
| Gauge | Color | ID(mm) | OD(mm) | 12.7mm | 25.4mm | 38.1mm |
| (1/2″) | (1″) | (3/2″) | ||||
| 10 | Metal | 2.8mm | 3.5mm | OS 10050 | OS 10100 | OS 10150 |
| 11 | Metal | 2.5mm | 3mm | OS 11050 | OS 11100 | OS 11150 |
| 12 | Metal | 2.27mm | 2.77mm | OS 12050 | OS 12100 | OS 12150 |
| 13 | Metal | 1.94mm | 2.4mm | OS 13050 | OS 13100 | OS 13150 |
| 14 | Metal | 1.65mm | 1.81mm | OS 14050 | OS 14100 | OS 14150 |
| 15 | Metal | 1.43mm | 1.81mm | OS 15050 | OS 15100 | OS 15150 |