Series Centers Extension Height Working Travel Max. Travel     mm / inches mm / inches mm / inches 3010 /30102G 4.00 mm 10.20 / .402 4.00 / .157 5.00 / .197 3010/2GW5 4.00 mm 10.20 / .402 4.00 / .157 5.00 / .197 3010/2F 4.00 mm 10.20 / .402 4.00 / .157 5.00 / .197 3010/2V 4.00 mm 10.20 / .402 4.00 / .157 5.00 / .197 3011/2GS 4.00 mm 10.20 / .402 4.00 / .157 5.00 / .197 3012/2G 4.00 mm 10.20 / .402 4.00 / .157 5.00 / .197 3020/3020/2G 2.54 mm 9.50 / .374 4.00 / .157 5.30 / .209 3023/2G 2.54 mm 10.40 / .410 4.00 / .157 5.00 / .197 3020/2GW5 2.54 mm 9:50 / .374 4.00 / .157 5.30 / .209 3030 2.54 mm 16.40 / .646 5.00 / .197 6.30 / .248