品牌
生产厂家厂商性质
所在地
DIN 371 螺旋槽机用丝锥（ W/BSF ）
SPIRAL FLUTED TAPS
| 规格 | 总长 | 刃长 |
| Size | Overall Length | Thread Length |
| W1/16-60 | 40 | 8 |
| W3/32-48 | 50 | 9 |
| W1/8-40 | 56 | 11 |
| W5/32-32 | 63 | 13 |
| W3/16-24 | 70 | 15 |
| W7/32-24 | 80 | 16 |
| W1/4-20 | 80 | 17 |
| W5/16-18 | 90 | 20 |
| W3/8-16 | 100 | 22 |
| BSF3/16-32 | 70 | 15 |
| BSF1/4-26 | 80 | 17 |
| BSF5/16-22 | 90 | 20 |
| BSF3/8-20 | 100 | 22 |
