How do you set the display where all the numbers are big? it shows a picture where there all big?

There is a select button to cycle though a choice of display options. There is also a zero button along with an on/off button (if my 78 y.o. memory serves me correctly). If that doesn't do what you want, I'm out of guesses. One observation might be that only whole and NOT fractional numbers appear large. Hope this helps.

What size screw is needed for battery cover? I tried jeweler screws but they are too small. I lost mine replacing battery.

I'm not sure but if you go to lowes or tractor supply I'm sure you'll find what you need fairly easy.

What is the casing of the digital readout made of? Plastic or metal?

The description says the housing is made of metal with a silver paint finish. Feel and weight suggests metal construction. It is heavier than others I have that are plastic.

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Kynup Digital Caliper, 6 Inch IP67 Waterproof Caliper Measuring Tool

Kynup Digital Caliper, 6 Inch IP67 Waterproof Caliper Measuring Tool

Product ID: 523596080

Details

Brand
Kynup
Material
Stainless
Measurement Accuracy
Product Dimensions
3"L x 9.29"W
Range
1.5E+2

⚡Fast Response & High Sensitivity - Instant accuracy

💧IP67 Waterproof - Dive into precision

🔧4 Measuring Modes - Versatile tool mastery

HK$785

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Description

💡 Measure Like a Pro, Rain or Shine!

WATERPROOF INNOVATION - IP67 rating lets you measure confidently underwater or in wet environments without a second thought.
SMART POWER MANAGEMENT - Auto-off and sleep modes extend battery life, so your caliper is ready when you are.
LIGHTNING FAST READINGS - Absolute coding system delivers rapid, stable, and highly sensitive measurements every time.
PRECISION MEETS DURABILITY - Crafted with 3.5mm thick stainless steel for long-lasting, silky-smooth measurements.
MULTI DIMENSIONAL MEASURING POWER - Easily switch between depth, step, internal, and external diameter measurements for total control.

The Kynup Digital Caliper is a 6-inch precision measuring tool featuring IP67 waterproofing, a high-sensitivity electromagnetic induction sensor, and a robust stainless steel body. It supports four measurement types—depth, step, internal, and external diameters—with fast, stable readings and smart power-saving auto-off functions, making it ideal for professionals and DIY enthusiasts seeking reliable, versatile, and durable measurement solutions.

Specifications

ASIN	B0BS96R2FQ
Best Sellers Rank	#21,552 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #298 in Digital Calipers
Brand Name	Kynup
Customer Reviews	4.6 4.6 out of 5 stars (3,904)
Included Components	Digital Caliper
Item Dimensions L x W	3"L x 9.29"W
Item Weight	0.45 kg
Manufacturer	Kynup
Material Type	Stainless Steel
Measurement Accuracy	±0.001”/0.02mm
Model	02-170-2
Number of Batteries	2 CR2032 batteries required.
Number of Items	1
Part Number	02-170-2
Range	1.5E+2 millimeters
Unit Count	1 Count

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

1 month ago

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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HK$785

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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The delivery time was excellent, and the packaging was secure.

2 months ago

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