Knockout Trade Size Chart

Knockout Trade Size Chart – 3/4″ conduit, drill using a 1 1/8″ or 29mm hole saw. How do i know what size to order? The nominal knockout diameter for 3/4 inch conduit is 1.109 inches. Eko’s are routinely made for these common sizes.

Th0390 Manual Knockout Punch Driver Kit For ½ Inch To 2 Inch

Knockout Trade Size Chart

The sizing charts are not guaranteed to provide the correct size. The electrical industry has common conduit sizes. 1/2″ conduit, drill using a 7/8″ or 22mm hole saw.

Minimum Dimension For Larger Sizes Is Necessary To Clear The.

1/2 conduit size punch actually makes a 7/8 hole. Sizing charts are to aid you in the picking the correct size, but many factors go into the perfect fit. Hub size knockout hole recommended (min to max/ inches) 1/4.540 to.570 3/8.671 to.701 1/2.859 to.906 3/4 1.094 to 1.141 1 1.359.

Hole Saw Sizes And Knockout Punch Equivalent.

1 1/2″ trade size conduit, drill using a 2″ hole saw or 1 1/2″ conduit. The multiple knockout cluster is punched alternately in and out. 17 rows all sizes are inches.

1 1/4″ Trade Size Conduit, Drill Using A 1 3/4″ Hole Saw Or 1 1/4″ Conduit Knockout Punch (1.701″ Or 43.2Mm).

The center knockout should have only one tie for conduit at least up to 3/4 (21) trade size. When specifying panel punch sizes, use the filters for shape, size 1 & size 2. A knockout for 1/2 conduit is 7/8, but the outside diameter of a 1/2 emt fitting is about 3/4.