QUESTIONS OR NEED HELP?  Call 1-866-863-2302

ES-645L1 Slip Clutch
Torque Screwdriver

The ES-645L1 is a direct plug-in lever start torque screwdriver (13.2 – 39.6 in-lbs) with a slip/cushion clutch.

Key Features
  • Lever Start
  • 13.2 – 39.6 in lbs Torque Range
  • RPM 550
  • +/- 5% Torque Deviation


  • Lever start
  • Direct Plug-in
  • One Year Warranty
  • Excellent combination of power and ergonomic features
  • Slip Clutch
  • Reverse/forward switch
  • External replaceable brushes
  • Repeatable torque
  • Torque adjustable by external dial
  • Power source: 115VAC
  • Torque setting: Stepless
  • Torque range: 13.2 – 39.6 in-lb (15.0 – 45.0 kgf-cm)
  • Standard Torque Deviation: +/-5(%)
  • R.P.M: 550
  • Machine screw: .12~.24″ (3.0 – 6.0mm)
  • Tapping screw: .12~.20″ (3.0 – 5.0mm)
  • Weight: 1.32lb (600g)
  • Length: 10.24″ (260mm)
  • Grip diameter: 1.50″ (38mm)
  • UL and CE Certified: None
  • Can be provided with 230V AC power source
  • Can be provided with UL certification 

The ES-645L1 Slip Clutch Torque Screwdriver represents a versatile direct plug-in lever start torque driver, featuring a torque range of 13.2 – 39.6 in-lbs. This tool is equipped with a slip/cushion clutch mechanism that engages once the pre-set torque limit is achieved. This unique functionality imparts a subtle release of pressure on the screwdriver bit.

Designed for practical applications in mind, the ES-645L1 Slip Clutch Torque Screwdriver is particularly well-suited for tasks involving self-tapping screws and assembly applications where stringent torque control is not a primary requirement. The slip/cushion clutch ensures that the torque is applied up to the specified limit, preventing over-tightening and contributing to the longevity of the fasteners.


The list below is the common replacement parts. Please look at the product manual (located above) and fill out a replacement part form  if you need a part that you can not find. We will contact you with cost and delivery information.

Carbon Brush Pack EPMC21411

Power Cord Assembly (EPAD30001-A)