The CTB series Digital Torque Wrench is the newest version of Tohnichi’s digital torque wrench designed especially for performing re-tightening tests for torque inspections.  Re-tightening tests are one of most common ways to perform quality inspections on fasteners that have already been tightened by hand or machine.  The test involves re-tightening the fastener just until the bolt head starts to move. This can often be difficult to detect and data can vary among users because of differences in technique.  Tohnichi created the CTB to assist with collecting data that is closest to the original tightening value and more consistent between users. By using T-Point torque methodology and incorporating a gyro sensor, the wrench is able to detect the initial movement of the bolt head and then calculates what torque the bolt was originally tightened to.  The new CTB2-G version features new body styling, Ni-MH rechargeable battery for up to 20hrs continuous use, multiple units of measure selection by keypad, additional communications setups, CCW testing, and an expanded 999 data storage capacity.  The CTB2-G includes an interchangeable ratcheting square drive head, rechargeable battery pack and quick charger along with a certificate of calibration.

Available in 8 different model sizes covering an overall torque range of 2Nm up to 850Nm. CTB2-G allows for selection of different units of measure in equivalent ranges by keypad selection: Nm./kgf.cm./kgf.m./lbf.ft./lbf.in.

• New 2nd Generation Version
  • Expanded data memory capacity up to 999
  • Ni-MH rechargeable battery for 20 hrs continuous use
  • Communications set up functions: USB, baud rate, and handshake
  • Multiple unit of measure selection by keypad: Nm/kgf.cm./kgf.m/lbf.in/lbf.ft.
• Gyro sensor detects movement of fastener for more accurate testing.
• Software converts measured torque to initial tightening torque value.
• Ideal for quality inspections to confirm torque value of already tightened bolts using retightening method