Product Review
The Starrett 91B tap wrench body holds 3/16" to 1/2" taps with 5/32" to 9/32" square shank diameters and is used to tap workpieces (requires taps, not included). A plunger-type spring-operated knurled sleeve applies and removes the tap when pressure is applied. Tempered gripping surfaces firmly hold square or round shanks. The tap wrench has a 9" overall body length.
Specifications
| Capacity size (U.S.) | 3/16" to 1/2" |
| Capacity size (metric) | 4.7 to 12.7 mm |
| Body length (U.S.) | 9" |
| Body length (metric) | 225 mm |
| Square shank (U.S.) | 5/32" to 9/32" |
| Square shank (metric) | 4 to 7 mm |
The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company, founded in 1880, is headquartered in Athol, MA.
- Strong Design - Built with a balanced and durable construction that delivers reliable performance and control. The sturdy design ensures long-lasting strength while maintaining proper proportions for comfortable handling and precise gripping.
- Tempered Gripping Surfaces for Secure Hold - Precision-tempered gripping surfaces firmly secure both square and round shanks, providing dependable holding power during adjustment, alignment, or measurement tasks without slipping.
- Knurled Sleeve Plunger Operation - Features a convenient plunger system operated by a knurled sleeve, allowing smooth adjustment and easy operation while providing a firm grip for controlled tightening and release.
- Automatic Pressure Release Mechanism - An internal spring inside the sleeve automatically causes the plunger to back off when pressure is removed, helping protect the tool and ensuring consistent, controlled operation.
- Compatible with Square or Round Shanks - Designed to grip round shanks as well as square ones; however, care should be used when applying pressure to round shanks, as excessive force may damage the moveable V-jaw.
