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Items 21-30 of 669

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  1. 730-1/2
    730-1/2
    Greenlee Knockouts, SR Series
    Item Number
    730-1/2
    MFG Item Number
    730-1/2
    Series
    SR
    Product Description
    PUNCH UNIT .50(12.7) PK OF 1
    Specifications
    Specifications
    Hole Diameter (in) 0.5 "
    Hole Diameter (mm) 12.7 mm
    Capacity (GA) 16 AWG
    Capacity (mm) 1.5 mm
    Operator Type Standard Round
    Increase
    Decrease
    Availability
  2. 730BB-1-3/4
    730BB-1-3/4
    Greenlee Knockouts, SR Series
    Item Number
    730BB-1-3/4
    MFG Item Number
    730BB-1-3/4
    Series
    SR
    Product Description
    PUNCH UNIT1.75(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.
  3. 80023
    80023
    Icotek Knockouts, Round Punches Series
    Item Number
    80023
    MFG Item Number
    80023
    Series
    Round Punches
    Product Description
    Punch M32, round
    Specifications
    Specifications
    Hole Diameter (mm) 32.5 mm
    Capacity (mm) 3 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. 91AV
    91AV
    Greenlee Knockouts, SR Series
    Item Number
    91AV
    MFG Item Number
    91AV
    Series
    SR
    Product Description
    PUNCH 1.12 (28.6) PK OF 1
    Specifications
    Specifications
    Hole Diameter (in) 1.125 "
    Hole Diameter (mm) 28.6 mm
    Capacity (GA) 14 AWG
    Capacity (mm) 2 mm
    Operator Type Standard Round
    Increase
    Decrease
    Availability
  5. 92AV
    92AV
    Greenlee Knockouts, SR Series
    Item Number
    92AV
    MFG Item Number
    92AV
    Series
    SR
    Product Description
    DIE 1.12 (28.6) PK OF 1
    Specifications
    Specifications
    Hole Diameter (in) 1.125 "
    Hole Diameter (mm) 28.6 mm
    Capacity (GA) 14 AWG
    Capacity (mm) 2 mm
    Operator Type Standard Round
    Increase
    Decrease
    Availability
  6. KOM50125
    KOM50125
    Gardner Bender Knockouts, KOM Series
    Item Number
    KOM50125
    MFG Item Number
    KOM50125
    Series
    KOM
    Product Description
    Mech Knockout Set, 1/2in. - 1-1/4in.
    Specifications
    Specifications
    Conduit & Pipe Size 1.25 "
    Material Application Stainless Steel
    Driver Type Mechanical
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    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  7. KOW520
    KOW520
    Gardner Bender Knockouts, Slug-Out Series
    Item Number
    KOW520
    MFG Item Number
    KOW520
    Series
    Slug-Out
    Product Description
    Hand Ratchet Knockout Set, 1/2in. -
    Specifications
    Specifications
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  8. KP1000B
    KP1000B
    Gardner Bender Knockouts, Slug-Out Series
    Item Number
    KP1000B
    MFG Item Number
    KP1000B
    Series
    Slug-Out
    Product Description
    Knockout Punch, 1in. (1-3/32in. Hole)
    Specifications
    Specifications
    Conduit & Pipe Size 1 "
    Hole Diameter (in) 1.34 "
    Hole Diameter (mm) 34.04 mm
    Driver Type Hydraulic
    Increase
    Decrease
    Availability
  9. PUNCH24RECTANGULAR
    PUNCH24RECTANGULAR
    Icotek Knockouts
    Item Number
    PUNCH24RECTANGULAR
    MFG Item Number
    PUNCH24RECTANGULAR
    Product Description
    Hardware
    Increase
    Decrease
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  10. PUNCHE2RECTANGULAR
    PUNCHE2RECTANGULAR
    Icotek Knockouts
    Item Number
    PUNCHE2RECTANGULAR
    MFG Item Number
    PUNCHE2RECTANGULAR
    Product Description
    Hardware
    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.

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