Fortunately, you don’t have to overthink this decision. You can check the below table that shows the different conduit sizes and their corresponding knockout sizes. Conduit And Knockout Size Chart

Sizes 1/ 2 " thru 6" per proposed revision to NEMA Engineering Bulletin No. 71, Aug. 1976. Both rigid conduit and intermediate metallic conduit are threaded and accept couplings, nuts, and bushings et cetera directly.

Electrician’s Conduit Hole Saw Sizes Guide 1/2″ Trade Size conduit, drill using a 7/8″ hole saw or 1/2″ conduit knockout punch (.885″ or 22.5mm). 3/4″ Trade Size conduit, drill using a 1 1/8″ hole saw or 3/4″ conduit knockout punch (1.115″ or 28.3mm).

KNOCKOUT DIAMETERS AND FITTING DIMENSIONS TO ASSURE MECHANICAL AND ELECTRICAL CONTINUITY INTRODUCTION: The Joint Sections Committee on Knockout Diameters and Fitting Dimensions reviewed the existing industry practices and standards for knockout diameters and conduit fittings, and developed a table of

Mar 18, 2010 · It's a knockout spacing chart, which takes into account the locknut and the bushing. It's the distance, center to center, of adjacent knockouts. You look up the one pipe size down the left hand side, and the adjacent pipe size along the top.

Nov 24, 2024 · Electrical conduit hole saw sizes are not the exact dimensions as the trade name size of the conduit. Table of Contents: Drilling With A Hole Saw; Hole Saw Sizes and Knockout Punch Equivalent; Hole Sizes for Tapping Conduit Threads; Knockout Punch Operating Instructions; Greenlee Knockout Punch Replacement Part Numbers; DRILLING WITH A …

Feb 20, 2020 · How do I know what size to order? The electrical industry has common conduit sizes. EKO’s are routinely made for these common sizes. However, EKO tools must be ordered for the actual size of the hole, not the conduit size. See conversion chart below: Form Up …

Tight Seal Cable Grip - Knockout Hole Sizes ©2005 American Electrical PG mm inches 7 12.5 0.492 9 15.2 0.598 11 18.6 0.732 13.5 20.4 0.803 16 22.5 0.886

Conduit is used to protect and support electrical wires. Both rigid conduit and intermediate metallic conduit are threaded and accept couplings, nuts, and bushings et cetera directly. ALL SIZES ARE INCHES

Tight Seal Cable Grip - Knockout Hole Sizes PG mm inches 7 12.5 0.492 9 15.2 0.598 11 18.6 0.732 13.5 20.4 0.803 16 22.5 0.886 21 28.3 1.114 29 37 1.457 36 47 1.85 42 54 2.126 ... ©2005 American Electrical. IMDne1Blvr ErEcLBlcvr EFEcLBlcvr . Title: American Electrical | Knockout Hole Sizes Created Date: 1/24/2011 2:16:30 PM ...