KACO Large Capacity Neutral Pen Refills, 0.5mm, Blue-Black (Bullet Tip), 5 Pieces in OPP Bag

KACO•Pen core/refill

KACO Large Capacity Neutral Pen Refills, 0.5mm, Blue-Black (Bullet Tip), 5 Pieces in OPP Bag

CN¥8.19

SKU: 100040831394

Status:In Stock (10)

ID: 100031500058

Weight: 10.00 g

Dims:140x46x5 mm

Specifications

Product Features: Regular packaging
Quantity: 5 units
Pen tip characteristics: Bullet head
Refill color: Blue-black
Pen nib thickness: 0.5mm

Variants / Sale Attributes

Color: KEFILL Yagui 0.5mm, Melan Color, 5 Pieces

Size: Double-bead bullet tip

Package Contents

Single OPP bag, 10 pieces per box.

Product Description

Overview

Brand: KACO
Quick-drying Comparison: KALO, speed, dry test, KEFILL neutral pen core, partial speed drying test of other brands, partial other test pen models (non-brand: KACO).
Writing Angle Comparison: KEFILL neutral pen core, partial other test pen models (non-brand: KACO), the writing angle of this product is based on data obtained from Shanghai Wenci Experimental Laboratory: Initial writing, 0.28 mm & 0.38 mm, writing angle can be as low as 54°, 0.45 mm & 0.5 mm & 0.7 mm writing angle can be as low as 48°. 0.28 mm is a single-bead regular durable writing pen tip, while the rest are double-bead bullet pen tips. Actual writing angle may vary due to personal habits, but still ensures a smoother writing experience.

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Quick-drying Ink Test Method

Place the test pen at a 65°~70° angle to the writing paper surface, draw a straight line by hand at a speed of 70 mm/s for 100 mm. After 3 seconds, cover the line with the same type of writing paper, press with a special code on the covering paper surface, separate the two papers after 1 minute, and check if there is any ink residue on the covering paper.

Quick-drying Test Paper

Testing is done using writing paper that complies with the GB/T12654 standard.

Exceeds National Standards

Provides longer-lasting writing, KEFILL neutral pen core - substandard, 2 times the writing length as required by the standard, for extended endurance. KEFILL neutral pen core - 100, 1.5 times the writing length as required by the standard, for longer writing companionship.

Writing Length Test

KEFILL substandard pen core (0.28/0.38/0.45/0.5 mm) has a tested writing length of Approx. 800 meters (+/-10%), which is about 2 times the national standard writing length; KEFILL 100 pen core (0.28/0.38/0.45/0.5 mm) has a tested writing length of Approx. 600 meters (+/-10%), which is about 1.5 times the national standard writing length.

Tungsten Carbide Double Ball

Provides smooth and consistent writing, more durable.

Ink Quality

Clear and dark ink color, easily recognizable by computers, suitable for important exams.

Pen Compatibility

KEFILL substandard pen core (110 mm) is suitable for most pens such as Shuyuan, Jingdian, and Kaibao, under the brand: KACO. KEFILL 100 pen core (100 mm) is suitable for K7, K10, Shuchang, and Chuxin series pens.

Adjustable Pen Tip Cap

Can adjust the pen core length, practical design for easy use.

Transparent Pen Barrel

Allows for easy monitoring of ink levels, facilitating timely refills.

The above specifications are based on data obtained from Shanghai Wenci Experimental Laboratory.