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HARFINGTON Sheet Metal Hole Punch 18.6mm Metric Bearing Steel Circle Hole Puncher Set Knockout Punch Die Cutter Tool with Hex Head Screw Hex Wrench for Stainless Steel Sink Copper Plate - size: 18.6mm

HARFINGTON Sheet Metal Hole Punch 18.6mm Metric Bearing Steel Circle Hole Puncher Set Knockout Punch Die Cutter Tool with Hex Head Screw Hex Wrench for Stainless Steel Sink Copper Plate - size: 18.6mm

Regular price $24.88 USD
Regular price Sale price $24.88 USD
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About this item

  • Size - Punching Diameter: 18.6mm / 0.73"; Max. Outer Diameter: 28.5mm / 1.12"; Total Length: 50mm / 1.97"; Screw Thread Size: M10*1 (Dia x Pitch); Screw Thread Length: 35mm / 1.38"; Hex Wrench Size: 5mm / 0.2"; Hardness: HRC58-62; Punching Hole Type: Round
  • Material - Our sheet metal hole punches are made of bearing steel, which is highly hard, durable, wear-resistant, and scratch-resistant. They ensure long-lasting performance even when used on hard or thick sheet metal, and can punch clean, precise holes in sheet metal without deformation or burrs. The black surface treatment provides additional protection against corrosion and wear, extending the tool's lifespan.
  • Feature - The anti-slip spiral interface design of the punching die makes the connection more secure. This manual metal punch is designed for precision and efficiency. Using a internal hex wrench to turn the hex socket head screw, the screw will pull the punch through the metal, thus creating a hole. Before drilling, round holes need to be pre-drilled in the plate so that the screw can pass through the plate.
  • Applications - This punching die is suitable for cutting materials such as stainless steel, carbon steel, copper, aluminum, brass, and plastics. (The cutting thickness for stainless steel plates is 1.5mm; the thickness for carbon steel plates, aluminum plates, copper plates, and plastic plates is 3mm.) The manual punch works well even in confined spaces.
  • Note - When operating the sheet metal punch, always ensure that your fingers and hands are kept away from the punching area to avoid getting hurt. Use clamps or vises to firmly hold the sheet metal in place to prevent movement during punching, thus ensuring accuracy and safety.

Overview

  • Brand: HARFINGTON
  • Manufacturer: HARFINGTON
  • Number of Items: 2
Quantity

Low stock: 10 left

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Where Ideas Begin to Bloom

At BoardBloom, we believe the right supplies can make learning, creating, and presenting feel simpler and more inspiring.

From classroom lessons and school projects to crafts, displays, and everyday organization, each activity begins with an idea. Our goal is to provide practical materials that help students, teachers, parents, and creative minds bring those ideas to life.

We carefully select paper, art tools, classroom essentials, learning aids, and presentation supplies with usability, versatility, and creativity in mind.

BoardBloom is here to support every step—from the first sketch to the finished project—so ideas can grow, take shape, and be shared with confidence.

Discover BoardBloom
  • ⭐⭐⭐⭐⭐

    Megan Foster — Raleigh, North Carolina

    The supplies were colorful, practical, and easy to use from the start. I ordered several items for school projects and creative activities, and everything fit well into our routine. The materials helped make preparation more organized, and the projects felt easier to manage from beginning to end.

  • ⭐⭐⭐⭐⭐

    Daniel Harris — Phoenix, Arizona

    I found a useful mix of products for classroom activities, presentations, and everyday learning. The items were simple to understand, easy to store, and worked well for different types of projects. It was convenient to have practical supplies that could be used more than once and for more than one purpose.

  • ⭐⭐⭐⭐⭐

    Lauren Bennett — Columbus, Ohio

    BoardBloom made it easy to find supplies for crafts, student projects, and classroom displays in one place. The products felt versatile and were useful for several different activities throughout the week. Everything helped make planning smoother, and I appreciated how simple it was to stay organized while working.

  • ⭐⭐⭐⭐⭐

    Jason Miller — Portland, Oregon

    The materials I ordered were helpful for preparing lessons, organizing supplies, and creating visual displays. They were straightforward to use, practical for regular classroom needs, and easy to work into our existing setup. Overall, the products made everyday preparation feel more efficient and less complicated.

FAQ

What types of products does BoardBloom sell?

BoardBloom offers education, craft, classroom, and presentation supplies, including paper, markers, glue, craft tools, teaching aids, poster boards, display boards, bulletin board materials, and school organizers.

How much does shipping cost?

We charge a flat shipping fee of $6.90 per eligible order. Any applicable taxes, customs duties, or import fees are separate and may vary by destination.

How long does order processing take?

Orders are generally processed within 1–3 business days, Monday through Friday. Processing may take longer during holidays, promotions, or high-volume periods.

How long will delivery take?

Estimated delivery within the United States is 5–10 business days after shipment. International delivery generally takes 10–20 business days, depending on the destination and customs processing.

How can I track my order?

Once your order ships, we will send a confirmation email with tracking information. Tracking updates may take a few business days to appear after the carrier receives the package.

Can I change or cancel my order?

Please contact us as soon as possible. Changes or cancellations are only possible if processing or fulfillment has not already started, so we cannot guarantee that every request can be completed.

What is your return policy?

Eligible unused products may be returned within 30 days of confirmed delivery. Items must be in their original condition and packaging, and return authorization is required before sending anything back.

What should I do if my item arrives damaged, defective, or incorrect?

Contact us within 7 days of delivery and include your order number, a description of the issue, and clear photos of the product, packaging, and shipping label.

How do I know whether a product is suitable for my project or classroom?

Please review the product description, dimensions, materials, age guidance, and usage instructions before ordering. Adult supervision may be required for products involving scissors, adhesives, small parts, or other craft tools.

How can I contact BoardBloom customer support?

Email us at naoamobuaoosm@gmail.com. Please include your order number when contacting us about a purchase. We generally respond within 1–2 business days, Monday through Friday.