Dottie HPS400 4" Cup Die Set for 3-1/2" Conduit, Mounting Kits

Make fast, precise conduit knockouts on 3-1/2" conduit with the Dottie HPS400 4" Cup Die Set — ideal for security, surveillance and low-voltage network installations. This conduit adapter set pairs a 4" cup and die engineered in high-speed alloy steel to deliver durable, repeatable performance for steel and stainless steel applications. The patented 3-point design eliminates slug binding and requires up to 50% less torque than competing brands, reducing operator fatigue and speeding job completion. Laser-etched centering lines and clear size/part identification on the cup and die enable quick alignment and fewer mistakes on the jobsite. Because the HPS400 is interchangeable with many competitor punch tools, you can integrate it into existing punch systems without extra tooling cost. Whether you're installing CCTV, access control, or data cabling, this Dottie conduit adapter helps crews work cleaner, faster, and with less downtime. Order the HPS400 for dependable conduit knockout performance on your next monitoring, surveillance, or networking deployment.

• Speeds installs with clean 4" knockouts for 3-1/2" conduit, reducing rework on security and low-voltage runs
• 3-point cup design prevents slug binding and requires 50% less torque, minimizing installer fatigue
• Dual-rated high-speed alloy steel construction for reliable performance on steel and stainless steel
• Laser-etched centering lines and size/part markings for fast, accurate alignment on-site
• Interchangeable with competing punch tools to protect existing tool investments and simplify procurement