Side view of the Crescent Wiss WS6N 6-inch straight handle hand seamer showing the high-carbon steel jaws, black finish pivot mechanism, and ergonomic rawhide orange cushion grips.
Angled top-down view of the 6-inch manual sheet metal bending tool highlighting the wide cast jaws with the Wiss logo and integrated depth markings for precision HVAC ductwork.
The Crescent Wiss 6-inch hand seamer displayed in its original retail carded packaging, emphasizing the limited lifetime warranty and 152mm jaw width.
Close-up marketing graphic of the high-carbon steel jaws on the hand seamer with text identifying it as a quality tool used for bending and flattening sheet metal.
Feature graphic highlighting the optimal handle span of the manual seamer for maximum power and the ergonomic non-slip grips that include a built-in hang hole for storage.
Detailed view of the jaw face on the Crescent Wiss hand seamer showcasing the 1/4-inch depth markings used to produce permanent, tight-fitting seams in metal panels.
Specifications infographic for the WS6N hand seamer listing key technical data such as the 6-inch jaw width, 1.90-lb weight, and rawhide handle color against a professional orange background.
Side view of the Crescent Wiss WS6N 6-inch straight handle hand seamer showing the high-carbon steel jaws, black finish pivot mechanism, and ergonomic rawhide orange cushion grips.
Angled top-down view of the 6-inch manual sheet metal bending tool highlighting the wide cast jaws with the Wiss logo and integrated depth markings for precision HVAC ductwork.
The Crescent Wiss 6-inch hand seamer displayed in its original retail carded packaging, emphasizing the limited lifetime warranty and 152mm jaw width.
Close-up marketing graphic of the high-carbon steel jaws on the hand seamer with text identifying it as a quality tool used for bending and flattening sheet metal.
Feature graphic highlighting the optimal handle span of the manual seamer for maximum power and the ergonomic non-slip grips that include a built-in hang hole for storage.
Detailed view of the jaw face on the Crescent Wiss hand seamer showcasing the 1/4-inch depth markings used to produce permanent, tight-fitting seams in metal panels.
Specifications infographic for the WS6N hand seamer listing key technical data such as the 6-inch jaw width, 1.90-lb weight, and rawhide handle color against a professional orange background.
Crescent

Crescent Wiss Straight Hand Seamer WS6N 6 Inch Jaw Sheet Metal Bending Plier (1/4 Inch Depth Markings High Carbon Steel HVAC Duct Flashing Folding)

Only 1 left
SKU: WS6N
$65.99 USD

Description

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Crescent Wiss WS6N 6" Straight Handle Sheet Metal Hand Seamer

The Crescent Wiss WS6N 6-inch straight handle hand seamer forms wide uniform bends, folds tight mechanical drive cleats, and flattens sheet metal edges across commercial HVAC ducting, roofing flashing, and architectural metal fabrications. Engineered with broad 6-inch forged high-carbon steel jaws accommodating throat depths from 0.25 inches to 1.25 inches, this heavy-duty manual bending tool delivers maximum mechanical clamping force across wide spans in a single bite. Outfitted with precision-stamped 1/4-inch incremental depth graduations along the jaw faces for fast visual layout alignment, an optimized ergonomic handle span that minimizes hand fatigue under repetitive leverage cycles, non-slip textured cushion grips, and an integrated safety storage clasp, it equips sheet metal technicians, roofing specialists, and mechanical contractors with permanent, professional-grade seam closures without edge wrinkling or surface distortion.

Best Used For:

  • Wide HVAC Rectangular Duct Assembly: Bending continuous end flanges, drive cleats, and S-cleats on galvanized rectangular duct sections with a single 6-inch span clamp.
  • Architectural Roofing and Fascia Flashing: Forming clean, long drip edges, wall transitions, chimney counter-flashing, and valley seams on aluminum and copper panels.
  • Sheet Metal Hem Flattening and Edge Folding: Folding safety hems and flattening crushed seams manually on jobsite workbenches without requiring stationary bending brakes.

Key Performance & Safety Features

  • Extra-Wide 6" Forged Jaws: Broad high-carbon steel clamping faces distribute bending force evenly across wide sheet metal sections, eliminating rippled edges and multiple overlapping bites.
  • Precision 1/4" Depth Markings: Deeply cast 0.25-inch visual increments on the jaw faces ensure uniform, repeatable seam depths without stopping to check external rules.
  • High-Leverage Mechanical Linkage: Compound pivot design generates extreme flattening and folding torque while keeping handle spans within an ergonomic, non-fatiguing operating range.
  • Textured Non-Slip Cushion Grips: Solvent-resistant rawhide-finish handles provide superior control in oily or humid worksite conditions and clean up effortlessly.
  • Heavy-Duty Safety Latch: Positive metal handle clasp keeps the high-carbon steel blades safely locked closed during transport and protects adjacent gear inside tool bags.
  • Integrated Hanging Hole: Stamped handle eyelet enables convenient storage on workshop pegboards or lanyard tethering for safe elevated handling.

What's Included

  • (1) Crescent Wiss WS6N 6 In. Straight Handle Sheet Metal Hand Seamer (9-1/4 In. Overall Length)

Technical Specifications

Manufacturer Brand Crescent Wiss (Apex Tool Group)
Model Part Number WS6N
Product Tool Classification Straight Handle Sheet Metal Hand Seamer
Jaw Width Dimension 6.000 Inches (152.40 mm Jaw Span)
Jaw Throat Depth Capacity 0.250 in. to 1.250 in. (1/4 in. to 1-1/4 in. / 6.35 mm to 31.75 mm)
Depth Marking Increments 0.250 Inches (1/4 in. Stamped Visual Graduations)
Jaw Material Metallurgy Precision-Cast High-Carbon Alloy Tool Steel
Handle Orientation Profile Straight Inline Ergonomic High-Leverage Design
Handle Grip Coating Single-Material Non-Slip Cushion Grips (Rawhide Color)
Locking Mechanism Type Integrated Metal Handle Safety Latch
Storage Feature Built-in Handle Hang Hole for Pegboards
Overall Tool Length 9.250 Inches (234.95 mm)
Overall Tool Weight 1.900 lbs (30.40 oz / 0.862 kg)
Universal Product Code (UPC) 037103308542
Manufacturer Warranty Full Lifetime Warranty
Suitable for material type Galvanized Steel, Sheet Aluminum, Copper, & Stainless

Pro-Tip: When bending long runs of ductwork or roof flashing that exceed 6 inches, align the 1/4-inch jaw graduation mark with your scribe line and close the seamer firmly to start the bend at 45 degrees before returning to finish the full 90-degree fold; this multi-step staged technique guarantees dead-straight edges without dog-legs or wavy seams across thin metal gauges.