Description :
| | PREMIUM | | | | | | GD-960 | GD-930 | | Diameter | Core Barrel Length (L) | Solid typesintered | Joining-up type silver brazed | | | 26mm1" | 320 | 630 026 | / | | 28mm1-7/64" | 320 | 630 028 | / | | 30mm1-3/16" | 320 | 630 030 | / | | 32mm1-1/4" | 320 | 630 032 | / | | 38mm1-1/2" | 320, 400 | 630 038 | / | | 44mm1-3/4" | 320, 400 | 630 044 | 650 044 | | 50mm2" | 320, 400 | 630 050 | 650 050 | | 57mm2-1/4" | 320, 400 | 630 057 | 650 057 | | 63mm2-1/2" | 320, 400 | 630 063 | 650 063 | | 66mm2-19/32" | 320, 400 | 630 066 | 650 066 | | 71mm2-3/4" | 320, 400 | 630 071 | 650 071 | | 76mm3" | 320, 400 | 630 076 | 650 076 | | 83mm3-1/4" | 320, 400 | 630 083 | 650 083 | | 89mm3-1/2" | 320, 400 | 630 089 | 650 089 | | 102mm4" | 320, 400 | 630 102 | 650 102 | | 107mm4-7/32" | 320, 400 | 630 107 | 650 107 | | 110mm4-9/32" | 320, 400 | 630 110 | 650 110 | | 120mm4-23/32" | 320, 400 | 630 120 | 650 120 | | 127mm5" | 320, 400 | 630 127 | 650 127 | | 132mm5-3/16" | 320, 400 | 630 132 | 650 132 | | 150mm6" | 350, 400 | 630 150 | 650 150 | | 159mm6-1/4" | 350, 400 | 630 159 | 650 159 | | 166mm6-1/2" | 350, 400 | 630 166 | 650 166 | | 180mm7" | 350, 400 | 630 180 | 650 180 | | 202mm8" | 350, 400 | 630 202 | 650 202 | | 220mm8-21/32" | 350, 400 | 630 220 | 650 220 | | 244mm9-1/32" | 350, 400 | 630 244 | 650 244 | | 274mm10-25/32" | 350, 400 | 630 274 | 650 274 | | 300mm12" | 350, 400 | 630 300 | 650 300 |
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