Conversion table measured GG length to cut to cut (c/c) length conventional

Example. Measured with Grip-Guide 4 1/4. It will be drilled c/c 3 3/4, after 1/2 has been removed. The example is in bold below

GG measured spanRemove for conventionalDrill c/c span
27/321 25/32
2 1/87/321 29/32
2 1/41/42
2 3/81/42 1/8
2 1/29/322 7/32
2 5/89/322 11/32
2 3/45/162 7/16
2 7/85/162 9/16
311/322 21/32
3 1/811/322 25/32
3 1/43/82 7/8
3 3/83/83
3 1/213/323 3/32
3 5/813/323 7/32
3 3/47/163 5/16
3 7/87/163 7/16
415/323 17/32
4 1/815/323 21/32
4 1/41/23 3/4
4 3/81/23 7/8
4 1/217/323 31/32
4 5/817/324 3/32
4 3/49/164 3/16
4 7/89/164 5/16
519/324 13/32