can be used with Ac 220 V country?

No, it can 't be used with AC 220v country.

Does it rotate or vibrate?

Glad to help you, the engraver work by reciprocating motion, the rotary tool works by rotational motion.

I can't secure the screw when the engraving is inserted, what am I doing wrong?

If you mean you can't secure the set screw when the "engraving tip" is inserted, consider the following. The tip should be sticking out about 3/8" to 7/16" if it's properly inserted. If it's sticking out more, it's not in, and you should back out the set screw a little more so the tip will go all the way in and seat in the holder. Make sure you use the Alan wrench that came with the engraver to tighten the set screw. If it still won't tighten, you may have a defective unit (engraving tip holder, set screw, set screw threads, etc) and you should go to the manufacturer's website for their contact information and see if they will help you. If you just purchased it, consider Amazon returns if the unit turns out to be defective and should be replaced.

How is this compared to Dremel 290-05 120V? What type of bits recommended for granite/marble?

According to the feedback from other buyers, Utool Engraver have more beautiful appearance and powerful performance. And the Tungsten Carbide Steel Bits can be used on the granite/marble

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10PCS Spare Parts Set for UTOOL 24W Engraver Pen Kit | Includes 4 Diamond Point Tungsten Carbide Steel Engraving Bits, 4 Grinding Bits, 1 Replaceable Screw, 1 M2 Allen Wrench

10PCS Spare Parts Set for UTOOL 24W Engraver Pen Kit | Includes 4 Diamond Point Tungsten Carbide Steel Engraving Bits, 4 Grinding Bits, 1 Replaceable Screw, 1 M2 Allen Wrench

Product ID: 172556280

Details

Shank Type
Straight
Brand
UTOOL
Item dimensions L x W x H
3.5 x 5 x 0.1
Tool Flute Type
Straight
Surface Recommendation
Glass Ceramic

💎4 Diamond Point Bits for precision engraving

🔧1 M2 Allen Wrench + Replaceable Screw for quick swaps

⚙️4 Tungsten Carbide Steel Bits with HRA≥80 hardness

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Description

🔩 Upgrade your craft game with precision that lasts!

BUILT TO LAST - High wear resistance and anti-impairment design guarantee long-lasting performance.
PRECISION MEETS POWER - Ultra-fine grain carbide bits deliver unmatched hardness (HRA≥80) for flawless engraving.
SEAMLESS ACCESSORY SWAPS - Includes M2 Allen wrench and replaceable screw for fast, tool-free bit changes.
SMOOTH CONSISTENT FINISH - Diamond bits ensure clean, shallow, and coherent surface marks every time.
VERSATILE MATERIAL COMPATIBILITY - Effortlessly engrave stone, glass, metal, hardwood, ceramics, and more with one kit.

This 10-piece spare parts set for the UTOOL 24W Engraver Pen Kit includes 4 diamond point tungsten carbide steel engraving bits, 4 grinding bits, a replaceable screw, and an M2 Allen wrench. Designed for high hardness (HRA≥80) and wear resistance, it supports engraving on a wide range of hard materials like stone, glass, metal, and ceramics. Perfect for professionals seeking durable, versatile, and precise engraving tools.

Specifications

ASIN	B07YWH1Y5J
Best Sellers Rank	#13,029 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #15 in Jewelry Making Engraving Machines & Tools #1,765 in Craft Cutting Tools
Customer Reviews	4.5 4.5 out of 5 stars (281)
Date First Available	July 15, 2020
Item Weight	3.52 ounces
Item model number	PEB0101
Manufacturer	UTOOL
Product Dimensions	3.5 x 5 x 0.1 inches

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94.50 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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