Hole sizes vary with the tool used and the material being punched. Tools are rated for use in mild steel or stainless steel with some models suitable for both. Knockouts also are used to punch holes in aluminum, fiberglass and plastic. Basic hand-operated knockout tools have evolved into more sophisticated tools that are easy to use, accurate and productive. Greenlee introduced a line of knockout punches in for electricians, plumbers and others in construction, said Rob Bentley, product manager.
Modern advancements in knockout technology have focused on making the job faster, safer and easier. Bentley cited past advances in the Greenlee product line: Slug-splitting tools mids split the slug into two pieces during the knockout process, facilitating removal of the slug from the die or around the draw stud. Patented self-centering knockout punch added a chamfer on the inner diameter of the punch that forces the punch to center itself on the pilot hole and still provides the slug-splitting benefits.
For knockouts that do not have the self-centering feature, the user holds the knockout system in place until the cutting edge of the punch makes contact with the material. Once this resistance is encountered on the material surface the tool will not shift. The 6-ton battery-powered knockout driver is a compact, lightweight driver with degree swivel head for easy positioning in tight corners and difficult spaces.
A single-trigger control senses when the hole is complete and automatically stops the tool to prevent damage to the punch and die. A light-emitting diode LED illuminates the work area.
The threadless speed-punch design removes traditional threads from the punch and draw stud and eliminates the time and labor required to manually thread the punch on and off the draw stud. Speed-punch sets are compatible with any manual-hydraulic or battery-hydraulic driver.
The ton battery-powered knockout driver provides more power to punch larger holes through thicker materials and can be used with all Greenlee knockouts.
Knockout tools are the single most accurate tool to punch out holes, which is important when numerous runs of conduit need to fit into an enclosure. The holes need to be precise so that the conduit aligns perfectly, and knockout tools do this better than any other option.
Steel punches and dies expanded the capability of knockouts to make holes in stainless steel enclosures. Traditionally, the most challenging step in the hole-making process is setting up the punches and dies on the material. Charge Time 1 hour. Output Force 10 Tons. Quick Connect Draw Stud Yes. Battery Warranty 3 Year. Battery System M Get Connected. Email Address Field 'Email Address' is required.
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