Benfield Conduit Bending Manual (2nd Edition)

(No reviews yet)
5.00 (in)
8.00 (in)
0.50 (in)
Current Stock:
Adding to cart… The item has been added

This classic manual is a must-have in the electrical industry. Author Jack Benfield uses simple math and clear instructions for bending conduit of various materials, and for a wide variety of real-world scenarios. There’s a reason this book is the industry bible when it comes to bending conduit! The manual features non-technical formulas and calculation tables that will have you bending conduit correctly from day one.


  • Chapter 1: Bending 90° Stubs
  • Chapter 2: All About Offsets
  • Chapter 3: Back-to-Back Bends
  • Chapter 4: Utilizing the "Gain"
  • Chapter 5: Three and Four Saddle Bends
  • Chapter 6: Bending with Hickeys Variable Radius Bends
  • Chapter 7: Rolling Offsets (Around Corners) and 90° Compound Belts
  • Chapter 8: Keeping Conduit Run "On-the-Flat" at Ceiling Corners and "Over the Top"
  • Chapter 9: Electrical Conduit in Concrete Slabs, Shifting EMT Stubs, Etc.
  • Chapter 10: Removing Bend in 1/2" EMT
  • Chapter 11: Bending Surface Metal Molding
  • Chapter 12: Bending PVC Conduit
  • Chapter 13: Using Benfield Formulas and Symbols with "Chicago" Rachet-Type, Hydraulic or Electrically Powered Benders
  • Chapter 14: Hand Bender Types Described
  • Chapter 15: A Review of Conduit Bending Tips
  • Chapter 16: General Bending Information of Value

Meet the Author

Jack Benfeld

Jack Benfield has been identified with the electrical conduit industry since 1929. He was a pioneer in the marketing of thin wall (EMT) conduit in the United States. Republic Steel Corporation created EMT. To market this brand-new product, the company selected six young salesmen to cover the United States. Jack was in that original group of six.

Almost every branch of the electrical industry tried to discourage the acceptance of thin wall conduit. Electricians cussed it, because it was such a problem to bend. Only hickey-type tools were available and they kinked the EMT too easily.  Labor unions wanted more labor, not less. The steel mills wanted more tonnage, not less. The NEC restricted the use of EMT to exposed dry locations and to circuits of 300 volts or less.

Then, in the early 1930s, a wheel-type EMT bender (hand portable type) with a fixed radius appeared. It did an acceptable job, but it was an awkward tool with four parts and a floppy hook. The need for a better bender was obvious. Jack designed and patented the first one-piece, solid hook Benfield bender for 1/2”, 3/4” and 1” EMT.

Jack Benfield wrote the first pocket instruction booklet back in the early 1930s. Since then over 2 million copies of his instruction booklets have been published. This revised “Benfield Conduit Bending Manual” is the perfect companion for teaching proper bending techniques. Apprentice electricians use the manual as a textbook to "zero-in" on any bothersome bending problem.

Electrical superintendents, training directors and journeymen electricians, by the thousands, have endorsed Jack’s simple, non-technical method for making conduit bends that fit.