info@organametrisis.gr
210 2231624
English Inch 55° BSF
| BSF | TPI | Teeth P mm | Drill mm | d3 Minor Diameter mm | d=D Major Diameter mm |
| 3/16" | 32 | 0.794 | 4.00 | 3,747 | 4,763 |
| 7/32" | 28 | 0.907 | 4.60 | 4,394 | 5,556 |
| 1/4" | 26 | 0.977 | 5.3 | 5,100 | 6,350 |
| 9/32" | 26 | 0.977 | 6.1 | 5,893 | 7.142 |
| 5/16" | 22 | 1,156 | 6.8 | 6,459 | 7,938 |
| 3/8" | 20 | 1.27 | 8.3 | 7,899 | 9,525 |
| 7/16" | 18 | 1,411 | 9.70 | 9.304 | 11.113 |
| 1/2" | 16 | 1,588 | 11.10 | 10,668 | 12,700 |
| 9/16" | 16 | 1,588 | 12.70 | 12,256 | 14,288 |
| 5/8" | 14 | 1,814 | 14.00 | 13,549 | 15,875 |
| 11/16" | 14 | 1,814 | 15.50 | 15.137 | 17,463 |
| 3/4" | 12 | 2.117 | 16.75 | 16,336 | 19,050 |
| 13/16" | 12 | 2.117 | 18.25 | 17,924 | 20,638 |
| 7/8" | 11 | 2.309 | 19.75 | 19,269 | 22,225 |
| 1" | 10 | 2.54 | 22.75 | 22.148 | 25,400 |
| 1 1/8" | 9 | 2,822 | 26.50 | 24,963 | 28,575 |
| 1 1/4" | 9 | 2,822 | 28.75 | 28,138 | 31,750 |
| 1 3/8" | 8 | 3,175 | 31.50 | 30,861 | 34,925 |
| 1 1/2" | 8 | 3,175 | 34.50 | 34,036 | 38,100 |
| 1 5/8" | 8 | 3,175 | 38.00 | 37,211 | 41,275 |
| 1 3/4" | 7 | 3,629 | 40.50 | 39,802 | 44,450 |
| 2" | 7 | 3,629 | 47.00 | 46,152 | 50,800 |
| 2 1/4" | 6 | 4.234 | 53.00 | 51,730 | 57,150 |
| 2 1/2" | 6 | 4.234 | 59.00 | 58,080 | 63,500 |
| 2 3/4" | 6 | 4.234 | n/a | 64,430 | 69,850 |
| 3" | 5 | 5.08 | n/a | 69,692 | 76,200 |
| 3 1/4" | 5 | 5.08 | n/a | 76,042 | 82,550 |
| 3 1/2" | 4 1/2 | 5,645 | n/a | 81,670 | 88,900 |
| 3 3/4" | 4 1/2 | 5,645 | n/a | 88,020 | 95,250 |
| 4" | 4 1/2 | 5,645 | n/a | 94,370 | 101,600 |
| 4 1/4" | 4 | 6.35 | n/a | 99,822 | 107,950 |
