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GREENLEE K3BB-3-1/2 Round Knockout Punch & Die, 4 1/64 in Nominal Size - Greenlee Knockout Punches & Dies
GREENLEEGreenlee Knockout Punches & Dies

GREENLEE K3BB-3-1/2 Round Knockout Punch & Die, 4 1/64 in Nominal Size

The GREENLEE Knockout Punch Set (MPN K3BB-3-1/2) is a Greenlee Knockout Punches & Dies product designed for 10 ga sheet metal capacity in steel. It has a 4 1/64 in nominal size, round shape, and includes a 2 in…

SKU 3G-OTH-291594

Also listed as: K3BB312 · K3BB 3 1 2 · K3BB-3-1-2

Brand
GREENLEE
Item
K3BB-3-1/2 Round Knockout Punch & Die, 4 1/64 in Nominal Size
Category
Greenlee Knockout Punches & Dies
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

GREENLEE
Manufacturer Part Number
K3BB-3-1/2
Type
Round
Nominal Size
4 1/64 in

Technical Documents

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GREENLEE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GREENLEE Knockout Punch Set (MPN K3BB-3-1/2) is a Greenlee Knockout Punches & Dies product designed for 10 ga sheet metal capacity in steel. It has a 4 1/64 in nominal size, round shape, and includes a 2 in wrench. The set is made of plastic and is a GREENLEE brand item.

Frequently Asked Questions

What is the GREENLEE Knockout Punch Set K3BB-3-1/2 used for?

The GREENLEE K3BB-3-1/2 knockout punch set is used to create clean, round holes in 10 ga steel sheet metal for electrical enclosures, panel boxes, and junction boxes. It is a manual tool that punches a 4 1/64 in diameter hole, enabling conduit or cable entry without metal shavings.

What are the specifications of the GREENLEE K3BB-3-1/2 knockout punch set?

The GREENLEE K3BB-3-1/2 set has a nominal size of 4 1/64 in, round shape, and a 10 ga steel sheet metal capacity. It includes a 2 in wrench and is made of plastic. The manufacturer part number is K3BB-3-1/2. It is designed for manual operation in electrical and industrial applications.

Where to buy the GREENLEE K3BB-3-1/2 knockout punch set worldwide?

You can source the GREENLEE K3BB-3-1/2 knockout punch set from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this Greenlee tool.

How to use the GREENLEE knockout punch set for 10 ga steel?

To use the GREENLEE K3BB-3-1/2 set, drill a pilot hole in the 10 ga steel, insert the punch and die from opposite sides, and tighten the included 2 in wrench to draw the punch through the metal. Always wear safety glasses and lubricate the cutting edge for cleaner results.

Used in

Common applications for GREENLEE
Electrical panel fabrication — Greenlee knockout punch sets (e.g., K2BB-1-1/2) for creating holes in 10 ga steel enclosures.
Telecommunications cable installation — Greenlee cable cutter model 765 for cutting data cables up to 2 1/4 inches.
Conduit wire pulling — Greenlee non-conductive fish tape FTN536-50 for pulling wires through 50 ft of conduit.
PVC conduit bending — Greenlee heater model 847 for heating 1/2 to 6 inch PVC pipes before bending.
Long-distance cable pulling — Greenlee conduit measuring tape model 435 for pulling cables up to 3,000 ft with 170 lb capacity.
Threaded hole creation — Greenlee drill tap countersink DTAPM5C for M5x0.8 metric threads in sheet metal.

GREENLEE Products

3G Electric supplies GREENLEE greenlee knockout punches & dies. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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