Micrometer Torque Wrench, Click, 1/2" Square Drive, 20 - 150 ft-lbs./33.9 - 210.2 N.mMeets or exceeds ISO 6789 and ASME B107. 300 2010 standards and specifications Pull adjustment collar for easy and quick torque setting changes Knurled anodized aluminum handle allows user to grip the wrench comfortably, helping to reduce hand fatigue Mid point on handle clearly marked for accuracy Thin profile, sealed, teardrop head design offers improved access and durability for highly effective application Scale markings are highly visible and