Description
The Proto J52228 is a 3/8 in drive 12-point metric socket set, sold as a 57-piece set. It combines 12-point, deep and universal sockets with bit sockets, extensions and handles.
The manufacturer states that its 12-point sockets suit stubborn or damaged fasteners and fasteners made of soft materials, and describes a radius-corner drive design that engages the fastener flats rather than the corners. The page overview marks the set as tools only (no case listed). Finish per the manufacturer: full polish. Contents as listed by the manufacturer: 17 12-point sockets (J5206M to J5222M); 7 12-point universal sockets (J5272AM to J5278AM); 6 hex bit sockets (J4990-4M, J4990-5M, J4990-6M, J4990-7M, J4990-8M, J4990-10M); 14 12-point deep sockets (J5006M to J5019M); 3 cross-head bit sockets (J5241, J5242, J5243); 1 slotted screwdriver bit socket, 1/4 in (J5246); 3 extensions (J5260, J5260-06, J5262); 1 universal joint (J5270A); 1 adapter ratchet (J5247); 1 pear-head ratchet, 3/8 in drive, 7 in (J5249); 1 hinge handle (J5265); 1 speed handle, 1/4 in drive, 15-1/2 in (J5280G); 1 sliding T-handle, 3/4 in drive (J5285).
Features
- 57-piece set
- 3/8 in drive 12-point metric socket set
- Size system: metric
- Radius-corner drive design engaging the fastener flats, per the manufacturer
- Finish: full polish
Specifications
| Specification | Value |
|---|---|
| Model | J52228 |
| Quantity | 1 set of 57 pieces |
| Type | 12-point metric socket set |
| Drive size | 3/8 in |
| Point count | 12-point |
| Size system | metric |
| Contents | 17 12-point sockets (J5206M to J5222M); 7 12-point universal sockets (J5272AM to J5278AM); 6 hex bit sockets (J4990-4M, J4990-5M, J4990-6M, J4990-7M, J4990-8M, J4990-10M); 14 12-point deep sockets (J5006M to J5019M); 3 cross-head bit sockets (J5241, J5242, J5243); 1 slotted screwdriver bit socket, 1/4 in (J5246); 3 extensions (J5260, J5260-06, J5262); 1 universal joint (J5270A); 1 adapter ratchet (J5247); 1 pear-head ratchet, 3/8 in drive, 7 in (J5249); 1 hinge handle (J5265); 1 speed handle, 1/4 in drive, 15-1/2 in (J5280G); 1 sliding T-handle, 3/4 in drive (J5285) |
| Finish | full polish |
| Weight | 10.206 kg (22.5 lb, converted) |
Part numbers
| Manufacturer part number (MPN) | Big Papa SKU |
|---|---|
| J52228 | BP-G-PRO-52228 |

