Tweezers

Part Number	Description / PDF	Quantity
75220 Wiha	TWEEZER POINTED BLUNT 7.87"	1
48307 Wiha	TWEEZER CUT POINT VRY FINE 4.53"	0
44520 Wiha	TWEEZER FLAT BLUNT RND 40 5.71"	11
43014 Wiha	TWEEZER POINTED BLUNT 40 5.71"	0
40024 Wiha	TWEEZER BLUNT 14	0
44501 Wiha	TWEEZER POINTED FINE AA 5.12"	305
75302 Wiha	TWEEZER POINTED FINE 5.71"	0
46613 Wiha	TWEEZER FLAT MICRO 13 4.72"	0
44593 Wiha	ESD SAFE TWEEZERS SET, 10 PIECE.	2
44503 Wiha	TWEEZER POINTED FINE SS 5.31"	14
40021 Wiha	TWEEZER POINTED FINE 11	0
44506 Wiha	TWEEZER POINT FINE ROUND 3 4.72"	26
44505 Wiha	TWEEZER FLAT ROUNDED 2A 4.72"	76
43731 Wiha	TWEEZER BACK STOP WAFER 37 4.72"	0
44525 Wiha	TWEEZER POINT EXTRA FINE 4.72"	8
40025 Wiha	TWEEZER FLAT BLUNT 15	0
44528 Wiha	TWEEZER POINT EXTRA FINE 4.21"	7
55547 Wiha	TWEEZER BACK STOP WAFER 91 4.92"	3
43416 Wiha	TWEEZER CYLNDR BARREL 62 5.71"	0
75205 Wiha	TWEEZER POINTED FINE 5.12"	0

Tweezers

1. Overview

Tweezers are precision handheld tools designed to grasp, hold, or manipulate small objects inaccessible to human fingers. Modern tweezers integrate advanced materials and ergonomic designs to meet demands in electronics, healthcare, laboratory research, and industrial manufacturing. Their importance lies in enabling precise handling of components at micro and nano scales, critical for semiconductor assembly, surgical procedures, and material science applications.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Anti-Static Tweezers	Conductive carbon fiber composite, ESD protection	PCB assembly, IC handling
Carbide-Tipped Tweezers	Hardened tungsten carbide tips, wear-resistant	Automotive sensor manufacturing
Smooth Tip Tweezers	Polished stainless steel, non-marking grip	Optical lens alignment
Spring-Loaded Tweezers	Automatic opening mechanism, fatigue reduction	Micro-surgery procedures
High-Temperature Tweezers	Chrome-cobalt alloy, 1200 C resistance	Metallurgical sample handling

3. Structure and Components

Typical construction includes:

Jaws: Angled or straight tips with precision-ground surfaces
Shaft: Hollow or solid design with length ranging 75-150mm
Material: Medical-grade stainless steel, titanium alloys, or polymer composites
Surface Treatment: Electropolishing, diamond-like carbon coating
Ergonomic Features: Bi-material handles, textured gripping zones

4. Key Technical Specifications

Parameter	Importance
Tip Hardness (HV0.1): 550-1800	Determines wear resistance and longevity
Parallelism Tolerance: 5 m	Ensures uniform gripping force
Thermal Stability: -196 C to 1200 C	Enables extreme environment operation
Surface Roughness (Ra): 0.05 m	Prevents particle contamination
Spring Force: 0.5-5.0N	Optimizes handling precision

5. Application Fields

Key industries include:

Electronics Manufacturing: SMT component placement, BGA rework
Medical Devices: Stent assembly, ophthalmic instrument calibration
Life Sciences: Cell manipulation, histology sample handling
Aerospace: Composite material repair, avionics maintenance
Photonics: Fiber optic alignment, laser component assembly

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Feature
ElectroForce Systems	ESD-Pro Series	Integrated ionization coating
CarbTec Advanced	DuraTip XT	Replaceable carbide inserts
MediTool Solutions	SurgiGrip+	Autoclavable titanium construction
NanoPrecision Inc.	UltraTweezer	Sub-micron tip accuracy

7. Selection Recommendations

Consider:

Material compatibility (e.g., non-magnetic for MRI components)
Tip geometry matching component size (0402 SMD vs. 01005 components)
Ergonomic assessment for >8-hour daily use
Traceability requirements (ISO 13485 certified tools)
Specialized coatings for corrosive environments

8. Industry Trends

Emerging developments:

Integration of piezoelectric actuators for micro-force feedback
Graphene-enhanced composites reducing tool weight by 40%
Smart tweezers with IoT-enabled usage analytics
3D-printed custom geometries for specialized nanotechnology applications
Increased adoption of single-use polymer tweezers in sterile manufacturing