The 443930 model is a double‑end adjustable tap wrench featuring a cast zinc body and hardened steel clamping jaws, designed primarily for manual use with hand taps. Its handles can be unscrewed for use in tight spaces, making it flexible and user‑friendly.
Specifications
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Thread size range: M 4 to M 12 (Metric), equivalent to “Nr. 2” size
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Standard compliance: DIN 1814
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Material and build: Zinc die‑cast housing with hardened jaws ensures good grip and durability
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Operation: Handles screw into the housing for adjustment; can be removed when needed to improve access in narrow workspaces
Usage and Features
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Function: Securely clamps a hand tap (square shank), enabling controlled threading by hand
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Handles: Swappable/unscrewable handles that retract for confined or awkward access
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Best suited for: M 4–M 12 taps—ideal size for general threading applications in metalworking or DIY projects










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