Tweezers

Wiha tools

Wiha Professional ESD tweezers are manufactured from high-grade steel with antistatic properties for use in EPA zones. The range includes universal and precision tweezers (130-145 mm) as well as SMD tweezers (110-120 mm) in various forms (AA, GG, SS, PSF, 00, 2a, 3c, 5, 7a, 7abb, 12, 13, 59). All models carry the "Professional ESD" designation and are equipped with ESD-dissipative material.

⚡ Permanent ESD dissipation - all models antistatic, suitable for EPA zones per DIN EN 61340-5-1

⚙ Universal tweezers - 32318 (form AA, 130 mm), 32343 (form 40, 145 mm) for general handling tasks

⚙ Precision tweezers - forms PSF (32325), GG (32347), SS (32326), 00 (32327), 2a (32329), 3c (32346), 5 (32334), 7a (32335), 7abb (32336)

⚙ SMD tweezers - form 59 (32344, 117 mm), form 12 (32338, 120 mm), form 13 (32340, 120 mm) for SMD placement

📦 SMD set - 32349, multiple SMD Professional ESD tweezers in one set for direct range deployment

Item	Type	Form	Length
32318	Universal tweezers	AA	130 mm
32343	Universal tweezers	40	145 mm
32325	Precision tweezers	PSF	130 mm
32346	Precision tweezers	3c	110 mm
32329	Precision tweezers	2a	120 mm
32334	Precision tweezers	5	110 mm
32335	Precision tweezers	7a	120 mm
32344	SMD tweezers	59	117 mm
32338	SMD tweezers	12	120 mm
32349	SMD set	Assortment	-

Typical applications: SMD placement and hand-soldering in ESD-protected areas, handling of precision components in electronics manufacturing and laboratory, rework and inspection on circuit boards, and fine mechanical assembly with ESD requirements.

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What are precision tweezers and where are they primarily used in industrial applications?

Precision tweezers are specialized handling tools designed for manipulating small components in electronics manufacturing, semiconductor production, and precision assembly operations. Industrial applications include SMD component placement on PCBs, microscopic part handling in medical device manufacturing, and quality inspection processes in automotive electronics. The Bernstein 5-170 ESD SMD tweezers set exemplifies professional-grade tools used in cleanroom environments where static-sensitive components require careful handling. These tools are essential in industries requiring sub-millimeter precision including aerospace, telecommunications equipment manufacturing, and laboratory instrumentation assembly.

What technical criteria should engineers consider when selecting precision tweezers for SMD work?

SMD tweezers selection requires evaluating tip geometry, material composition, and ESD protection capabilities based on component size and handling requirements. The Bernstein 5-170-G geometric tweezers set offers 11 different tip configurations optimized for various component footprints from 0201 to larger QFP packages. Critical parameters include tip alignment accuracy within 0.02mm, surface hardness rating, and electrical resistance values below 10^12 ohms for ESD models. Material selection between stainless steel, titanium-coated, or carbon fiber variants depends on chemical compatibility with flux materials and required magnetic properties for sensitive components.

Which international standards apply to ESD tweezers used in electronics manufacturing?

ESD tweezers must comply with IEC 61340-5-1 for electrostatic discharge control in manufacturing environments and DIN EN 100015 for ESD protective equipment specifications. The surface resistance requirements mandate values between 10^6 and 10^12 ohms according to ANSI/ESD S20.20 standards for ESD control programs. Professional tweezers like the Bernstein 5-190-V ESD precision set meet ISO 9001 quality management standards and undergo periodic resistance testing per JEDEC standard JESD625-A. Additional compliance with RoHS directive 2011/65/EU ensures material compatibility with lead-free soldering processes in electronics manufacturing.

How do ESD SMD tweezers sets differ from standard precision tweezers in industrial applications?

ESD SMD tweezers incorporate conductive materials and coatings that dissipate static electricity safely, while standard precision tweezers focus solely on mechanical handling precision without electrical considerations. The Bernstein 5-060-V ESD Vario set features surface-treated tips with controlled electrical resistance, whereas the standard 5-050-V lacks static protection capabilities. ESD variants require regular resistance testing and have specialized grip coatings that maintain conductivity over extended use. Manufacturing environments handling integrated circuits mandate ESD-protected tools, while mechanical assembly operations may utilize standard tweezers for non-sensitive components.

What installation and compatibility requirements exist for professional tweezers workstations?

Professional tweezers workstations require ESD-compliant work surfaces with resistance values between 10^6 and 10^9 ohms and proper grounding connections through wrist straps or heel grounders. The Bernstein tweezers holders like those included with the 5-170 set must maintain electrical continuity to the ESD mat system through conductive mounting hardware. Workstation compatibility includes microscope integration points, adjustable lighting systems with minimum 1000 lux illumination, and vacuum pickup system connections. Cleanroom installations additionally require HEPA filtration compatibility and materials meeting ISO 14644 cleanliness classifications for particle-sensitive environments.

What safety ratings and operating parameters apply to industrial precision tweezers?

Industrial precision tweezers operate safely within temperature ranges from -20°C to +150°C for standard stainless steel variants, with specialized high-temperature models rated to +300°C for soldering applications. ESD tweezers maintain electrical safety through surface resistance testing at 10V DC according to ANSI/ESD STM11.11 standards with readings between 10^6 and 10^12 ohms. Chemical resistance ratings vary by tip coating, with titanium nitride coatings providing superior corrosion protection against flux residues and cleaning solvents. The Bernstein ESD series meets IP40 ingress protection standards and includes safety certifications for use in ATEX Zone 2 environments where explosive atmospheres may occasionally occur.

What maintenance schedules and service life expectations apply to professional tweezers?

Professional precision tweezers require monthly electrical resistance testing using calibrated megohmmeters to verify ESD protection remains within 10^6 to 10^12 ohm specifications per IEC 61340-5-1 standards. Tip geometry inspection should occur weekly under 10x magnification to detect wear, damage, or contamination that affects handling precision. The Bernstein ESD tweezers typically provide 2-3 years service life under normal industrial use with proper maintenance including ultrasonic cleaning in isopropyl alcohol solutions. Complete replacement becomes necessary when tip alignment exceeds 0.05mm deviation or surface resistance measurements fall outside acceptable ranges during calibrated testing procedures.

Tweezers

Technical features

Product overview

Typical applications