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 span	Remove for conventional	Drill c/c span
2	7/32	1 25/32
2 1/8	7/32	1 29/32
2 1/4	1/4	2
2 3/8	1/4	2 1/8
2 1/2	9/32	2 7/32
2 5/8	9/32	2 11/32
2 3/4	5/16	2 7/16
2 7/8	5/16	2 9/16
3	11/32	2 21/32
3 1/8	11/32	2 25/32
3 1/4	3/8	2 7/8
3 3/8	3/8	3
3 1/2	13/32	3 3/32
3 5/8	13/32	3 7/32
3 3/4	7/16	3 5/16
3 7/8	7/16	3 7/16
4	15/32	3 17/32
4 1/8	15/32	3 21/32
4 1/4	1/2	3 3/4
4 3/8	1/2	3 7/8
4 1/2	17/32	3 31/32
4 5/8	17/32	4 3/32
4 3/4	9/16	4 3/16
4 7/8	9/16	4 5/16
5	19/32	4 13/32