What is the power consumption of this unit over a week of continuous use? (in usa on 110v). thank you.

This takes .3 Amps, so (watts = amps x volts) OR watts = .3 x 110 which equals33 watts. Now for one week would equal 33 watts x 7 days x 24 hours =5544 watts or 5.54 kilowatts for one week.At $.16 per kilowatt it comes to $.89 per week.

What the difference between this and the starter kit?

There are two main differences:The Hobby Rock Tumbler has a rubber tumbling barrel with a stainless steel cap, which reduces noise and is more durable. The Starter Kit Rock Tumbler has a plastic barrel. The Hobby Rock Tumbler also has a keypad for setting the number of days you would like it to tumble, where as the Starter Kit Rock Tumbler's setting options are on/off. Thank you for your inquiry.

What pound tumbler is this product?

Dearest National Geographic.... why would you only send 1# of rocks with a two pound tumbler?

Can i buy extra grit without the rocks. we have many rocks from "mining" gemstones that i would love to polish. what do you recommend?

I recommend you follow the rock tumbler hobbiest MIchigan Rocks on Youtube. He's a good wealth of information for anyone getting into rock tumblers. He and other's mention that the polish from National Geographic is not good. I would go with rock tumbler polish offered by Polly Plastics.

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[ナショナルジオグラフィック]National Geographic Hobby Rock Tumbler Kit NGHOBBYTUMBLER [並行輸入品]

Product ID: 736143246

Details

サイズ
ワンサイズ
テーマ
Rock Tumbling
ブランド
Blue Marble
商品寸法 (長さx幅x高さ)
35.1 x 12.4 x
対象年齢
子供

🔇Noise-reducing stainless lid

⏲️Auto shut-off timer

⚙️Powerful 15.8V motor

144825CFA

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Description

💎 Turn rough stones into polished treasures — your next conversation starter!

QUIET CLEAN WORKSPACE - Stainless steel lid minimizes noise and prevents leaks
STEM APPROVED CREATIVITY - Educational kit perfect for kids and adults to explore geology
PRECISION FINISH EVERY TIME - Includes 4 grit grades and 9 gemstone varieties for flawless results
ENDLESS ROCK POLISHING POWER - Durable motor designed for years of creative use
COMPLETE JEWELRY CRAFTING SET - All accessories included to transform polished stones into stunning jewelry

The National Geographic Hobby Rock Tumbler Kit features a robust 15.8V motor, an automatic shut-off timer, and a noise-reducing stainless steel lid. It comes with half a pound of nine different gemstones and four grit grades, enabling users to polish stones into beautiful jewelry pieces. Designed for educational STEM use, this kit is ideal for kids and hobbyists seeking a hands-on geology experience. While highly rated for casual use, motor longevity may vary, with repair options available.

Specifications

ASIN	B01LQCIL88
Amazon 売れ筋ランキング	おもちゃ - 162,745位 ( おもちゃの売れ筋ランキングを見る ) 岩石・鉱物の実験・科学 - 162位
GTIN (Global Trade Identification Number)	00816448020421
UPC	816448020421
おすすめ度	4.5 5つ星のうち4.5 (24,949) var
お客様の年齢層	子供
サイズ	ワンサイズ
サブブランド	National Geographic
テーマ	Rock Tumbling
ブランド名	Blue Marble
メーカー型番	NGHOBBYTUMBLER
ユニット数	1.00 個
商品の入り数	1
商品の重量	5.07 ポンド
商品本体サイズ	35.1 x 12.4 x 20.5 cm
型番	NGHOBBYTUMBLER
教育目的	STEM
材質タイプ	ステンレス鋼
組み立て式	いいえ

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144825CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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2 months ago

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