Proto® Fractional Double Box Reversible Black Chrome Ratcheting Wrenches – Spline
- Black chrome finish is corrosion resistant and visually distinctive
- Ratcheting spline box end is countersunk for easy application to the fastener
- Spline design was created for use with specialty spline bolts which are used when weight and size of bolt heads must be minimized
- Spline design enables the wrench to contact conventional fasteners away from the corners, which help apply force over a large area helping to reduce risk of fastener rounding
- Spline design also helps prevent rounding of corners and other fastener damage that could lead to Foreign Object Damage (FOD)
- The fractional spline wrenches can be used on fractional 4, 6, 12 point and spline fasteners
- The high contact surface area which is away from fastener points enables turning of highly rounded fasteners
- The chrome-vanadium switch levers allows for easy changes in turning direction which helps improve speed
- Chrome-vanadium box ends and switch levers provide high strength and durability
| Part No. | Size |
| JSBV0709 | 7/32" x 9/32" |
| JSBV0810 | 1/4" x 5/16" |
| JSBV1214 | 3/8" x 7/16" |
| JSBV1618 | 1/2" x 9/16" |
| JSBV2022 | 5/8" x 11/16" |
| JSBV2428 | 3/4" x 7/8" |
| JSBV2630 | 13/16" x 15/16" |
| JSBV3236 | 1" x 1-1/8" |
| JSBV3440 | 1-1/16" x 1-1/4" |
- Contact Heavy Maintenance Supply 205-384-5284 for more information
