Does this item come pre-calibrated? Will you be able to provide document on the calibration?

No, it doesn't come with pre-calibration. I just checked it with a calibrated one.

What kind of batteries do these calipers use?

Copy and paste this - 50 357 Alkaline Watch Batteries LR44 AG13 SR44W Battery - for a lot of 50 battery cells that work for this Caliper.

can i use this to measure screws? i mixed up a bunch of screws in a bag and have no idea what size is which.

Yes, however you might benefit by using a thread checker instead. It is difficult to determine thread pitch using calipers. Thread checkers work when you thread a screw into the checker or a nut onto it. This has the advantage of sorting the 8mm screws and nuts from the 5/16" screws and nuts. It also allows you to determine if a screw or nut is a #12 SAE as opposed to a 1/4" SAE screw or nut.

are these tips hardened? Thanks

Yes, the tips are hardened so they don't flex and dull out.

01409a | Desertcart Northern Mariana Islands

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$191.28

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Sold byAmazon Northern Mariana IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📐 Elevate your precision game—measure like a pro, every time.

BUILT TO ENDURE - Polished stainless steel frame with knurled thumb roller and locking screw for smooth, reliable use.
SEAMLESS UNIT SWITCHING - One-button toggle between inch, fraction, and millimeter modes—ditch manual conversions forever.
READABILITY MEETS EFFICIENCY - Extra-large LCD screen ensures quick, clear readings to keep your workflow uninterrupted.
VERSATILITY AT YOUR FINGERTIPS - Measure inside, outside, depth, and step with dual jaws and depth probe—your all-in-one precision partner.
PRECISION THAT COMMANDS RESPECT - Accurate to 0.001" / 0.02mm for flawless measurements every time.

The NEIKO 01409A 12” Electronic Digital Caliper delivers professional-grade accuracy with a 0-12 inch (0-300 mm) range and 0.001" resolution. Featuring a polished stainless steel frame, an extra-large LCD for effortless reading, and a one-button quick-change for inch, fraction, and millimeter modes, it’s engineered for versatility and durability. Ideal for professionals and DIYers alike, it includes dual jaws for inside/outside/depth measurements, a locking screw for stability, and comes with a rugged storage case plus an extra battery—ensuring you’re always ready for precision tasks.

Specifications

ASIN	B000EJUBBU
Best Sellers Rank	#1,202 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Digital Calipers
Brand Name	NEIKO
Customer Reviews	4.3 4.3 out of 5 stars (1,438)
Global Trade Identification Number	00837013014096, 00837013014140
Included Components	12-inch digital caliper, 1 case, 1 extra battery
Item Dimensions L x W	17"L x 6"W
Item Type Name	12” Electronic Digital Caliper \| Extra Large Display \| 0 - 12 Inches \| Inch/Fractions/Millimeter Conversion \| Polished Stainless Steel
Item Weight	1.5 pounds
Manufacturer	Neiko
Material Type	Stainless Steel
Measurement Accuracy	0.001” / 0.02 mm
Model	01409A
Number of Batteries	2 Product Specific batteries required. (included)
Number of Items	1
Number of Packs	1
Part Number	01409A
Range	12
UPC	798813028693 837013014096 837013014140
Unit Count	1 Count

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$191.28

Duties & taxes included

In stock

Sold byAmazon Northern Mariana IslandsDelivered 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 Northern Mariana Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

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