Opened-ring torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 14 Nm size 10 mm
Opened-ring torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 31 Nm size 9/16 inch
Opened-ring torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 16 Nm size 7/16 inch
Opened-ring torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 46 Nm size 5/8 inch
Opened-ring torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 9 Nm size 3/8 inch
Opened-ring torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 25.0 mm max torque 74 Nm size 3/4 inch
Opened-ring torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 25.0 mm max torque 65 Nm size 11/16 inch
Opened-ring torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 28 Nm size 1/2 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 22 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 21 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 19 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 18 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 17 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 16 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 145 Nm size 15 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 125 Nm size 14 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 105 Nm size 13 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 89 Nm size 12 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 58 Nm size 11 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 47 Nm size 10 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 45 Nm size 9 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 25 Nm size 7 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 34 Nm size 8 mm
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 125 Nm size 9/16 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 7/8 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 72 Nm size 7/16 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 5/8 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 34 Nm size 5/16 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 58 Nm size 3/8 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 3/4 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 13/16 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 160 Nm size 11/16 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 25 Nm size 1/4 inch
Ring-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 105 Nm size 1/2 inch
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 35.0 mm max torque 160 Nm size 32 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 35.0 mm max torque 160 Nm size 30 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 30.0 mm max torque 160 Nm size 27 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 25.0 mm max torque 160 Nm size 24 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 25.0 mm max torque 160 Nm size 22 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 25.0 mm max torque 160 Nm size 21 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 25.0 mm max torque 145 Nm size 19 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 25.0 mm max torque 125 Nm size 18 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 109 Nm size 17 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 92 Nm size 16 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 77 Nm size 15 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 63 Nm size 14 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 51 Nm size 13 mm
Open-ended torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened, chrome finished effective length 17.5 mm max torque 41 Nm size 12 mm
Interchangeable Torque Insert Tools & Insert Heads for Open-Head Torque Wrenches
Explore ConnexTool's extensive 795-piece range of torque insert tools — interchangeable heads engineered by Stahlwille, Hazet, Wera, and Bahco to fit standard insert-type (headless) torque wrenches. Available across eight standardized insert-square sizes from 9x12 mm up to 27x36 mm, plus round R16 mm and R22 mm profiles, these heads let a single calibrated wrench body serve dozens of drive, ring, open-end, and specialty fastening configurations without the cost of multiple complete tools.
Standardized Insert-Square Interfaces, Reversible Ratchet Geometry & Size-Converter Adapters
Insert tools in this category share a standardized rectangular insert-square profile that locks securely into any matching open-head torque wrench or torque multiplier, decoupling the calibrated drive mechanism from the fastening interface entirely. Reversible ratchet heads such as Stahlwille's 725/735/737 series and Hazet's 6404 range are available with tooth counts from 22 to 60, where a finer tooth pitch reduces the swing arc needed to re-engage the ratchet in confined spaces. Open-end, ring, and split-ring insert heads (Stahlwille's 731/732/733 series, Bahco's 147/167 spigot profiles) suit applications where a socket cannot reach the fastener, while Wera's self-adjusting Joker heads cover a spanning range of metric and imperial sizes in a single unit. Size-converter adapters — such as Stahlwille's 7370 series — allow a wrench fitted for one insert square to accept heads of a different size, and dedicated calibration heads without ball-lock retention support laboratory torque verification rather than field fastening.
A Comprehensive Blueprint of Torque Insert Head Configurations
Our catalog spans every head profile and insert-square size for open-head torque wrench systems:
- ✔ Reversible Ratchet Insert Heads: Stahlwille 725/735/737 and Hazet 6404 series with tooth counts from 22 to 60, spanning 9x12 mm to 24.5x28 mm insert squares for confined-space applications.
- ✔ Open-End, Ring & Split-Ring Insert Heads: Stahlwille's 731/732/733 series and Bahco's 147/167 spigot-profile heads, reaching fasteners that socket-type heads cannot access.
- ✔ Self-Adjusting & Torx-Profile Insert Heads: Wera's Joker self-adjusting heads covering a size range in one unit, plus Stahlwille's 732TX Torx-profile heads for E-type fastener geometries.
- ✔ Size-Converter Adapters & Calibration Heads: Stahlwille's 7370 series for cross-size compatibility between insert squares, and 734K calibration heads without ball-lock retention for lab-grade torque verification.
Invest in professional-grade torque systems at ConnexTool, featuring 100% authentic inventory sourced directly from authorized European tool repositories.
