The GB784 is a pneumatic-hydraulic Hydro-Shift installation tool for CHERRYLOCK 2000-series, NAS1398, NAS1399, NAS1738, and NAS1739 double-action blind rivets.
The GB784 is a pneumatic-hydraulic Hydro-Shift installation tool for CHERRYLOCK 2000-series, NAS1398, NAS1399, NAS1738, and NAS1739 double-action blind rivets.
The GB784 is a pneumatic-hydraulic hydro-shift tool designed specifically for the efficient installation of the 2000 series CHERRYLOCK, NAS1398, NAS1399, NAS1738 and NAS1739 double action blind rivets. The GB784 weighs only 8 lbs. (3.62 kg) and can be operated in any position. It has a 0.875" (22.2 mm) fastener setting stroke and a rated pull load of 2,650 lbs. (11.78 kN) with 90 psi (6.2 bar) of air pressure at the air inlet. The GB784 installation tool operates on 90 to 100 psi (6.2 – 6.9 bar) of air pressure with 90 psi (6.2 bar) providing the maximum efficiency. At 90 psi (6.2 bar) of air pressure, the GB784 does not exceed 81.5 dB(A) and consumes 0.30 SCF/cycle (8.50 L/cycle). The air inlet is provided with 1/4-18 female pipe thread to accept the users air hose fitting
The GB784SH and GB784SR variants use a split configuration that reduces handheld weight.
| Weight | 8 lbs. (3.62 kg) |
|---|---|
| Rated Pull Load | 2,650 lbs. (11.78 kN) |
| Stroke | 0.875" (22.2 mm) |
| Height | 11.87 (301.6 mm) |
| Noise Level | 81.5 dB(A) |
| Warranty | 1 year |
| RIVET DIA. | NOSE ASSEMBLY | DIMENSION | ||
|---|---|---|---|---|
| A | B | |||
| 3/32" | 3U-681-25 | 0.188 | 0.348 | |
| 3/32" | 3C-681-25 | 0.163 | 0.332 | |
| 1/8" | 4U-681-25 | 0.250 | 0.341 | |
| 1/8" | 4C-681-25 | 0.208 | 0.377 | |
| 1/8" | 4US-681-25 | 0.250 | 0.359 | |
| 1/8" | 4F-681-25 | 0.430 | 0.358 | |
| 1/8" | 4S-681-25 | 0.174 | 0.341 | |
| 5/32" | 5U-681-25 | 0.313 | 0.377 | |
| 5/32" | 5C-681-25 | 0.269 | 0.352 | |
| 5/32" | 5US-681-25 | 0.313 | 0.377 | |
| 5/32" | 5F-681-25 | 0.535 | 0.338 | |
| 5/32" | 5S-681-25 | 0.225 | 0.352 | |
| 3/16" | 6U-681-25 | 0.375 | 0.418 | |
| 3/16" | 6C-681-25 | 0.335 | 0.386 | |
| 3/16" | 6US-681-25 | 0.375 | 0.419 | |
| 3/16" | 6F-681-25 | 0.625 | 0.367 | |
| 3/16" | 6S-681-25 | 0.281 | 0.386 | |
| 1/4" | 8U-681-25 | 0.500 | 0.452 | |
| 1/4" | 8C-681-25 | 0.458 | 0.398 | |
| Nose assemblies are not furnished with the tool and must be purchased separately. In ordering heads be sure to specify the shank diameter and head style (universal or countersunk) of the rivets to be installed. The following pulling heads will fit directly on the GB784 Riveter. (NOTE: Cherry 681 series pulling heads fit directly on the GB784). | ||||
| GB784 installs the listed fasteners | ||||
| The numbers shown in the rivet columns above are the maximum grip length that can be installed with this tool. Dashes indicate those rivets sizes which cannot be installed in any grip length. | ||||
| BULBED CHERRYLOCK (NAS1738/39) | ||||||
|---|---|---|---|---|---|---|
| Gage Bilt TOOL | NOSE ASSEMBLY | RIVET DIAMETER | ALUMINUM | MONEL | ||
| 2239 2249 | 2238 2248 | 2539 | 2538 | |||
| UNIV. HEAD | CTSK. HEAD | UNIV. HEAD | CTSK. HEAD | |||
| GB784 | XX-681-25 | -4 | ALL* | ALL* | ALL* | ALL* |
| -5 | ALL* | ALL* | ALL* | ALL* | ||
| -6 | ALL* | ALL* | ALL*** | ALL*** | ||
| The numbers shown in the rivet columns above are the maximum grip length that can be installed with this tool. Dashes indicate those rivets sizes which cannot be installed in any grip length. | ||||||
| GB784 installs the listed fasteners | ||||||
| *May require 95 PSI at tool. **Indicates maximum grip | ||||||
| STANDARD CHERRYLOCK (NAS1398/99 & HS4464 & HS5413) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Gage Bilt TOOL | NOSE ASSEMBLY | RIVET DIAMETER | ALUMINUM | MONEL | STAINLESS | |||
| 2163 2263 | 2162 2262 | 2563 | 2562 | 2643 2653 2663 | 2642 2652 2662 | |||
| UNIV. HEAD | CTSK. HEAD | UNIV. HEAD | CTSK. HEAD | UNIV. HEAD | CTSK. HEAD | |||
| GB784 | XX-681-25 | -4 | ALL | ALL | ALL | ALL | ALL | ALL |
| -5 | 8** | 8** | 8** | 9** | 8** | 9** | ||
| -6 | 8** | 8** | 8** | 9** | 8** | 9** | ||
| -8 | 8** | 8** | 8** | 9** | – | – | ||
| The numbers shown in the rivet columns above are the maximum grip length that can be installed with this tool. Dashes indicate those rivets sizes which cannot be installed in any grip length. | ||||||||
| GB784 installs the listed fasteners | ||||||||
| *May require 95 PSI at tool. **Indicates maximum grip | ||||||||
| Image | Model | Compatibility | |
|---|---|---|---|
 | 3C-681-25 | Recommended | |
 | 3F-681-25 | Recommended | |
 | 3S-681-25 | Recommended | |
 | 3U-681-25 | Recommended | |
 | 3US-681-25 | Recommended | |
 | 456MAX-680-31 | Recommended | |
 | 4C-640A-50 | Alternate | |
 | 4C-681-25 | Recommended | |
 | 4U-640A-50 | Alternate | |
 | 4U-681-25 | Recommended | |
 | 5C-640A-50 | Alternate | |
 | 5C-681-25 | Recommended | |
 | 5U-640A-50 | Alternate | |
 | 5U-681-25 | Recommended | |
 | 681-25 | Recommended | |
 | 6C-640A-50 | Alternate | |
 | 6C-681-25 | Recommended | |
 | 6U-640A-50 | Alternate | |
 | 6U-681-25 | Recommended | |
 | 8C-640A-50 | Alternate | |
 | 8C-681-25 | Recommended | |
 | 8U-640A-50 | Alternate | |
 | 8U-681-25 | Recommended |
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