Designed for heavy-duty roofing and sheathing applications, the Bostitch 438S2R-1 drives wide-crown staples with precision and speed. The tool features an anti-jam magazine, adjustable power control, rugged wear guards and a comfortable over-moulded grip — built for tough job-site conditions.
Key Features
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Drives 16-gauge, 1″ wide-crown S2 series staples, with leg lengths from ½″ up to 2″.
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Operating power rating: approximately 230 lbs of driving force at 100 psi.
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Tool weight: 4.7 lbs — balanced for production use.
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Magazine holds 160 staples for longer run-time between reloads.
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Jam-free magazine design and power-control valve (adjusts drive depth/power by 30%).
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Aggressive wear guards, skid-pads and carbide inserts for long life on abrasive surfaces.
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Adjustable shingle-spacing guide to assist along roofing panels or house-wrap installation.
Specifications
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Staple Gauge: 16 ga
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Crown Width: 1″
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Staple Leg Length Range: ½″–2″
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Magazine Capacity: 160 staples
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Tool Weight: 4.7 lbs
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Operating Pressure: 70–100 psi (typical)
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Power Driving Force: 230 lbs @100 psi
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Power Type: Pneumatic
Why Choose This Tool?
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Optimized for roofing, sheathing, wrap-barrier and cover-board tasks where a wide-crown staple ensures secure fastening over large surface areas.
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Designed for production environments with features to reduce downtime — jam-free magazine, long-magazine capacity, and carbide-tipped nosepiece add durability.
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Rugged build, good ergonomics and production-throughput features make it a smart choice for contractors dealing with heavy materials or high cycle counts.
Things to Know Before Buying
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Requires a clean, regulated air supply capable of maintaining pressures around 70–100 psi and good compressor flow to achieve full driving power.
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Ensure your staple inventory matches the S2-series wide-crown (1″ crown) and leg-length range you need for your material stack — using the wrong staple may reduce hold or cause mis-feeds.
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At 4.7 lbs and built for daily heavy use, operator ergonomics (wrist support, tool rotation, fatigue mitigation) should still be considered for extended shifts.
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For extremely thick or ultra high-volume fastening tasks beyond this tool’s spec, you may want to evaluate larger-frame or higher-capacity models.
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