Toggle Nav

Sign in to see your recent orders, quotes and account activity.

Sign in
My Cart
View as List Grid

Items 11-20 of 669

Set Ascending Direction
  1. 7240SB
    7240SB
    Greenlee Knockouts, 7240SB Series
    Item Number
    7240SB
    MFG Item Number
    7240SB
    Series
    7240SB
    Product Description
    Slug Buster Punch Kit, Pushbutton,
    Specifications
    Specifications
    Operation Hand Ratchet
    Includes Knockout Set Yes
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  2. 14722
    14722
    Greenlee Knockouts, SR Series
    Item Number
    14722
    MFG Item Number
    14722
    Series
    SR
    Product Description
    Die Replacement Std Round Knockout
    Specifications
    Specifications
    Conduit & Pipe Size 0.5 "
    Hole Diameter (in) 0.885 "
    Hole Diameter (mm) 22.5 mm
    Capacity (GA) 10 AWG
    Capacity (mm) 3.5 mm
    Operator Type Standard Round
    Increase
    Decrease
    Availability
  3. 28155
    28155
    Greenlee Knockouts, SCSS Series
    Item Number
    28155
    MFG Item Number
    28155
    Series
    SCSS
    Product Description
    S/S DIE .88 (22.5) PK OF 1
    Specifications
    Specifications
    Conduit & Pipe Size 0.5 "
    Hole Diameter (in) 0.875 "
    Hole Diameter (mm) 22.5 mm
    Capacity (GA) 10 AWG
    Capacity (mm) 3.5 mm
    Operator Type Self-Centering, Split Slug
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  4. 7238SB
    7238SB
    Greenlee Knockouts
    Item Number
    7238SB
    MFG Item Number
    7238SB
    Product Description
    SLUG-BUSTER KNOCKOUT KIT W/ RATCHET
    Specifications
    Specifications
    Operation Hand Ratchet
    Includes Knockout Set Yes
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  5. 80055
    80055
    Icotek Knockouts, Rectangular and Square Punches Series
    Item Number
    80055
    MFG Item Number
    80055
    Series
    Rectangular and Square Punches
    Product Description
    Punch E2 rectangular
    Specifications
    Specifications
    Capacity (mm) 2.5 mm
    Driver Type Hydraulic
    Operator Type Rectangular
    Increase
    Decrease
    Availability
  6. 1815AV
    1815AV
    Greenlee Knockouts, SR Series
    Item Number
    1815AV
    MFG Item Number
    1815AV
    Series
    SR
    Product Description
    DIE 1.75 (44.5) PK OF 1
    Specifications
    Specifications
    Hole Diameter (in) 1.75 "
    Hole Diameter (mm) 44.5 mm
    Capacity (GA) 10 AWG
    Capacity (mm) 3.5 mm
    Operator Type Standard Round
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  7. 28156
    28156
    Greenlee Knockouts, SCSS Series
    Item Number
    28156
    MFG Item Number
    28156
    Series
    SCSS
    Product Description
    S/S PUNCH 1.11(28.3) PK OF 1
    Specifications
    Specifications
    Conduit & Pipe Size 0.75 "
    Hole Diameter (in) 1.11 "
    Hole Diameter (mm) 28.3 mm
    Capacity (GA) 10 AWG
    Capacity (mm) 3.5 mm
    Operator Type Self-Centering, Split Slug
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  8. 35158
    35158
    Greenlee Knockouts, SCSS Series
    Item Number
    35158
    MFG Item Number
    35158
    Series
    SCSS
    Product Description
    S/B PUNCH 1.59(40.5) PK OF 1
    Specifications
    Specifications
    Hole Diameter (in) 1.595 "
    Hole Diameter (mm) 40.5 mm
    Capacity (GA) 10 AWG
    Capacity (mm) 3.5 mm
    Operator Type Self-Centering, Split Slug
    Increase
    Decrease
    Availability
  9. 36490
    36490
    Greenlee Knockouts, SCSS Series
    Item Number
    36490
    MFG Item Number
    36490
    Series
    SCSS
    Product Description
    S/S PUNCH 1.21(30.5) PK OF 1
    Specifications
    Specifications
    Hole Diameter (in) 1.21 "
    Hole Diameter (mm) 30.5 mm
    Capacity (GA) 10 AWG
    Capacity (mm) 3.5 mm
    Operator Type Self-Centering, Split Slug
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  10. 721-1/2
    721-1/2
    Greenlee Knockouts, SCSS Series
    Item Number
    721-1/2
    MFG Item Number
    721-1/2
    Series
    SCSS
    Product Description
    SLUG BUSTER KNOCKOUT PUNCH, 1/2in. CON
    Specifications
    Specifications
    Hole Diameter (in) 0.885 "
    Hole Diameter (mm) 22.5 mm
    Capacity (GA) 10 AWG
    Capacity (mm) 3.5 mm
    Operator Type Self-Centering, Split Slug
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
per page

Knockouts

A knockout punch is a handheld tool used to punch a hole through sheet metals, plastics and other solid materials. A knockout punch consists of a punch, die and screw and can be driven by hand, a ratchet, or with hydraulics.

Knockouts all function similarly. A pilot hole is drilled into the sheet or wall to guide the punch. The die and punch are placed on the opposite sides of the sheet and the screw threaded through. As the screw tightens, the punch cuts the hole. A knockout can also be han- or ratchet-operated to simplify the process. The punch and die are simply squeezed together with one tool, without any mechanical assembly.

Knockouts are used extensively in metalworking applications and for outfitting enclosures. Holes are punched to feed cables into a sealed box or cabinet.

© Copyright 2023 Galco Industrial Electronics, All Rights Reserved