17PCS Balance Weights Set 211.1g: Precision Calibration Weights (10mg-100g) with Tweezers & Storage Case

Precision you can rely on, wrapped in a compact, easy-to-use kit. This 17-piece balance weights set delivers accurate mass calibration across laboratories, classrooms, and workshop environments. With a total of 211.1 g and a tight ±0.003 g tolerance, you can trust every measurement when you’re dialing in scales, balances, or analytical instruments.

The kit is designed for everyday reliability. Each weight is crafted from No.45 steel—known for its strength and resistance to deformation—so you won’t worry about wear after repeated calibrations. The weights are conjoined cylindrical pieces with raised tops, engineered for a confident grip and precise placement on balance pans. A durable plastic storage case keeps everything organized, and included tweezers let you handle weights without transferring oils or residues.

What’s included

• 1 x 100 g
• 1 x 50 g
• 2 x 20 g
• 1 x 10 g
• 1 x 5 g
• 2 x 2 g
• 1 x 1 g
• 1 x 500 mg
• 2 x 200 mg
• 1 x 100 mg
• 1 x 50 mg
• 2 x 20 mg
• 1 x 10 mg
• 1 x plastic storage case
• 1 x precision tweezers
• Total: 17 calibration weights

Key features that matter in practice

• Broad range in one set: From 100 g down to 10 mg, you can calibrate high- and low-sensitivity scales without swapping weights.
• Exacting tolerance: Each weight adheres to a strict ±0.003 g specification, reducing the risk of drift during routine checks.
• Robust construction: No.45 steel provides lasting strength against bending, surface wear, and deformation under load.
• Contoured handling: The raised grip on each weight makes placement precise and safe, even with delicate balance pans.
• Ready-to-use packaging: A dedicated plastic storage case and included tweezers streamline setup, transport, and field calibration.

Who will benefit

Ideal for laboratory technicians, students, jewelers, and quality-control professionals who need reliable, repeatable mass references. It’s perfect for routine scale verification, educational demonstrations of measurement concepts, and industrial calibration workflows where accuracy and durability matter most.

Practical tips and best practices

• Always handle weights with the included tweezers or clean, lint-free gloves to prevent oil transfer that could affect readings.
• Store the set in its case when not in use to maintain surface integrity and prevent misplacement of small masses.
• Calibrate scales with the heaviest weights first to verify overall balance range, then fine-tune with the milligram and sub-milligram weights.
• Avoid placing weights near magnets or corrosion-prone environments to preserve surface finish and measurement integrity.

Note: The supplier may send either new-type or old-type variants randomly. This does not affect the accuracy or usability of the weights; please ensure you’re comfortable with this before ordering.