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.

Kynup Digital Caliper Caliper Measuring Tool Outside Micrometer Vernier Dia

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Description

📐 Elevate your DIY game with precision that professionals trust!

BUILT TO LAST RESIST - Crafted from stainless steel with IP54 splash-proof rating for rugged reliability.
SMART POWER MANAGEMENT - Auto shut-off after 6 minutes saves battery life so you never get caught off guard.
SEAMLESS UNIT SWITCHING - Instantly toggle between inch, mm, and fraction with a single button press.
VERSATILE 4 IN 1 MEASURING - Measure depth, step, internal & external diameters with dual jaws and probe.
PINPOINT ACCURACY EVERY TIME - ±0.001”/0.02mm precision ensures flawless measurements for your projects.

The Kynup Digital Caliper is a robust 6-inch stainless steel measuring tool offering ±0.001” accuracy, IP54 splash-proof protection, and a large LCD screen. It supports quick switching between inch, metric, and fractional units, and features versatile jaws and a probe for comprehensive measurements. Ideal for professionals and hobbyists, it combines durability with smart auto-off power saving for reliable, precise results every time.

Specifications

ASIN	B07X8JQ8L5
Best Sellers Rank	#910 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Outside Micrometers
Brand	Kynup
Brand Name	Kynup
Customer Reviews	4.6 out of 5 stars 11,491 Reviews
Item Dimensions L x W	3.5"L x 9.5"W
Item Weight	0.19 Kilograms
Manufacturer	Kynup
Material	Stainless Steel
Material Type	Stainless Steel
Model	170-2
Number of Batteries	3 Lithium Metal batteries required. (included)
Part Number	USQC03301915
Product Dimensions	3.5"L x 9.5"W
Range	1.5E+2 Millimeters
UPC	791315414919 791378538942
Unit Count	1.0 Count

Reviews

J**A

24.04.2026

G**D

11.12.2025

A**Y

9.09.2025

P**L

16.11.2025

M**C

4.04.2026

R**H

18.03.2026

J**Y

26.06.2025

J**S

16.02.2026

C**S

29.03.2024

B**T

13.04.2026

G**G

8.10.2025

H**Z

16.08.2021

S**L

28.10.2025

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Rp844001

Duties & taxes included

In stock

Sold byAmazon IndonesiaDelivered 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 Indonesia.

Secure transaction

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Kynup Digital Caliper, Caliper Measuring Tool Outside Micrometer, Vernier Dia...

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