Reversible ratchet torque insert tools 45 teeth 14x18 mm with spring-loaded retractable pin made of high quality steel hardened effective length 25.0 mm max torque 420 Nm size 3/4 inch
Reversible ratchet torque insert tools 45 teeth 14x18 mm with spring-loaded retractable pin made of high quality steel hardened effective length 25.0 mm max torque 340 Nm size 1/2 inch
Reversible ratchet torque insert tools 45 teeth 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 18.0 mm max torque 135 Nm size 3/8 inch
Reversible ratchet torque insert tools 45 teeth 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 18.0 mm max torque 30 Nm size 1/4 inch
Reversible ratchet torque insert tools 45 teeth 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 18.0 mm max torque 160 Nm size 1/2 inch
Reversible ratchet torque insert tools with Quick-Release 14x18 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 340 Nm size 1/2 inch
Reversible ratchet torque insert tools with Quick-Release 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 135 Nm size 3/8 inch
Reversible ratchet torque insert tools with Quick-Release 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 30 Nm size 1/4 inch
Reversible ratchet torque insert tools with Quick-Release 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 160 Nm size 1/2 inch
Pear head reversible ratchet torque insert tools 14x18 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 340 Nm size 1/2 inch
Pear head reversible ratchet torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 135 Nm size 3/8 inch
Pear head reversible ratchet torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 30 Nm size 1/4 inch
Pear head reversible ratchet torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 160 Nm size 1/2 inch
Fixed square head drive torque insert tools 27x36 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm max torque 2500 Nm size 1 inch
Fixed square head drive torque insert tools 24x32 mm with spring-loaded retractable pin made of high quality steel hardened effective length 35.0 mm max torque 1200 Nm size 1 inch
Fixed square head drive torque insert tools 24x32 mm with spring-loaded retractable pin made of high quality steel hardened effective length 35.0 mm max torque 1000 Nm size 3/4 inch
Fixed square head drive torque insert tools 14x18 mm with spring-loaded retractable pin made of high quality steel hardened effective length 25.0 mm max torque 420 Nm size 3/4 inch
Fixed square head drive torque insert tools 14x18 mm with spring-loaded retractable pin made of high quality steel hardened effective length 25.0 mm max torque 340 Nm size 1/2 inch
Fixed square head drive torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 18.0 mm max torque 135 Nm size 3/8 inch
Fixed square head drive torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 18.0 mm max torque 30 Nm size 1/4 inch
Fixed square head drive torque insert tools 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 18.0 mm max torque 160 Nm size 1/2 inch
Pear head reversible bit ratchet torque insert tools 30 teeth 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm size 15/16 inch
Pear head reversible bit ratchet torque insert tools 30 teeth 9x12 mm with spring-loaded retractable pin made of high quality steel hardened effective length 40.0 mm size 1/4 inch
Reversible ratchet torque insert tools 45 teeth 22 mm spigot connector made of high quality steel hardened effective length 56.0 mm max torque 1200 Nm size 3/4 inch
Reversible ratchet torque insert tools 45 teeth 16 mm spigot connector made of high quality steel hardened effective length 32.0 mm max torque 160 Nm size 3/8 inch
Reversible ratchet torque insert tools 45 teeth 16 mm spigot connector made of high quality steel hardened effective length 32.0 mm max torque 20 Nm size 1/4 inch
Reversible ratchet torque insert tools 45 teeth 16 mm spigot connector made of high quality steel hardened effective length 32.0 mm max torque 420 Nm size 1/2 inch
Fixed square drive head torque insert tools 22 mm spigot connector allow higher accessibility made of high quality steel hardened effective length 56.0 mm max torque 1200 Nm size 3/4 inch
Fixed square drive head torque insert tools 16 mm spigot connector allow higher accessibility made of high quality steel hardened effective length 32.0 mm max torque 160 Nm size 3/8 inch
Fixed square drive head torque insert tools 16 mm spigot connector allow higher accessibility made of high quality steel hardened effective length 32.0 mm max torque 20 Nm size 1/4 inch
Fixed square drive head torque insert tools 16 mm spigot connector allow higher accessibility made of high quality steel hardened effective length 32.0 mm max torque 420 Nm size 1/2 inch
Reducer adapter torque insert tools with spring-loaded retractable pin made of high quality steel chrome plated effective length 65.0 mm reducer from 27 x 36 mm to 24 x 32 mm
Reducer adapter torque insert tools with spring-loaded retractable pin made of high quality steel chrome plated effective length 42.0 mm reducer from 24 x 32 mm to 14 x 18 mm
Reducer adapter torque insert tools with spring-loaded retractable pin made of high quality steel chrome plated effective length 27.0 mm reducer from 14 x 18 mm to 9 x 12 mm
Increaser adapter torque insert tools with spring-loaded retractable pin made of high quality steel chrome plated effective length 65.0 mm increase from 24 x 32 mm to 27 x 36 mm
Increaser adapter torque insert tools with spring-loaded retractable pin made of high quality steel chrome plated effective length 65.0 mm increase from 14 x 18 mm to 24 x 32 mm
Increaser adapter torque insert tools with spring-loaded retractable pin made of high quality steel chrome plated effective length 42.0 mm increase from 9 x 12 mm to 14 x 18 mm
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 96 Nm size 24 mm
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 96 Nm size 22 mm
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 87 Nm size 21 mm
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 75 Nm size 19 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 65 Nm size 18 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 55 Nm size 17 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 46 Nm size 16 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 37 Nm size 14 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 30 Nm size 13 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 24 Nm size 12 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 19 Nm size 11 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.
