58mm tamper base knock convex
SKU: 83518279203

58mm tamper base knock convex

Sale price$17.84 Regular price$19.82
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Description

58mm tamper base knock convexJoeFrex 58 mm Tamper Base KNOCK CONVEX All KNOCK CONVEX bottom parts have a slightly convex pressing surface to press the coffee grounds. Why the name Knock? After pressing the coffee grounds for the first time, lightly tap (from English Knock) on the side of the filter holder to dislodge any remaining grounds. This allows for subsequent pressing. To avoid using the base of the tamper or the wooden handle for this light tap on the filter holder,

JoeFrex - 58 mm Tamper Base KNOCK-CONVEX

All KNOCK CONVEX bottom parts have a slightly convex pressing surface to press the coffee grounds.

Why the name Knock?

After pressing the coffee grounds for the first time, lightly tap (from English Knock) on the side of the filter holder to dislodge any remaining grounds. This allows for subsequent pressing. To avoid using the base of the tamper or the wooden handle for this light tap on the filter holder, risking damage to both the tamper and the filter holder arm, you can now tap with the silicone ring integrated into the base.

Why the name CONVEX?

Normally, the surface of the coffee grounds pressed into the filter holder doesn't play a significant role; whether it's flat or concave, there's enough space between the coffee surface and the dispensing group so that the water can be evenly distributed over the coffee grounds and pass through them evenly. However, if a flat filter is used in the arm, or if much more than 7g (for a one-cup filter) or 14g (for a two-cup filter) is used, the space between the coffee grounds and the dispensing group may be too small for optimal water distribution. For this purpose, you can use the Convex Tamper Base, as it leaves a cavity in the middle of the pressed coffee for better water distribution.

The dimensions of the tamper to be used vary depending on the manufacturer. Here is a list of manufacturers and their required dimensions for tampers.

Delonghi BAR Tamper 51mm
Dalla Corte Tamper 54mm
ECM Tamper 58mm
Elektra Micro Casa S1 Tamper 49mm
Elektra Tamper 58mm
Faema Tamper 58mm
Fiorenzato Tamper 58mm
Francis! Francis! X1 Tamper 56mm
Gaggia Tamper 58mm
Grimac Tamper 58mm
Isomac Tamper 58mm
IZZO Lever Tamper 53mm
IZZO Tamper 58mm
Krups Tamper 48/49mm
La Cimbali Tamper 58mm
La Marzocco Tamper 58mm
La Pavoni Club Combo / Duetto Tamper 58mm
La Pavoni Europiccola Tamper 48/49mm
La Pavoni Manual Lever for Domestic Use (from 1999 onwards) Tamper 51mm
La Pavoni Manual Lever for Domestic Use (up to 1999) Tamper 48/49mm
La Pavoni Lusso Tamper 53mm
La Pavoni Millennium Tamper 51mm
La Pavoni Professional Tamper 51mm
La Pavoni Pub Tamper 58mm
La Scala Tamper 58mm
La Spaziale Tamper 53mm
Nuova Simonelli Tamper 58mm
Quickmill Tamper 58mm
Rancilio Tamper 58mm
Reneka Tamper 57mm
Saeco Tamper 53mm or 51mm
San Marco Tamper 54.4mm or 53mm
Vibiemme Tamper 58mm
Wega Tamper 58mm

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SKU: 83518279203

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Robert Kennedy
Carnegie, US
★★★★★ 4
Great general purpose, inexpensive mouse.
Color: Grey
For the price, it’s an outstanding mouse. Have only used Bluetooth mode, and only used it for basic computer operations (not gaming), but feels responsive and comfortable. Great battery life.
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Reviewed in the United States on January 27, 2026
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Charles V Schneider
Charlottesville, US
★★★★★ 5
A great mouse for the price.
Color: Grey
This mouse is a great value and works well! It was extremely easy to connect to Bluetooth on my Microsoft Surface. I have also used it connected via the included dongle to my home PC. The USB type C charge port is really appreciated to minimize the number of cables that need to be carried to charge everything. It lasts a great amount of time between charges. My only minor complaint is that my large hands have a bit of difficulty holding it. I understand that it is a portable mouse intended to take on the go, so I didn't knock of anything for that.
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Reviewed in the United States on April 21, 2026
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Leo V
Waukegan, US
★★★★★ 5
THE BEST MOUSE ON THE MARKET!
Color: Grey
absolutely amazing mouse considering all factors! it is set at a good price range, and gets you a lot of features. it’s very durable, the frame is solid, it is compatible with MANY computers, a nice sleek black matte color. furthermore there is no delay, keeps my hand upright and the material keeps your hand comfy. thanks!
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Reviewed in the United States on May 22, 2026
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Avanish V.
Lowell, US
★★★★★ 5
Great mouse and best customer service ever!
Color: White
I bought this mouse a few months ago, and initially, I was quite happy with it. The design felt comfortable, and it worked smoothly right out of the box. However, after a few months of use, I started facing an issue with the clicks. Sometimes a click wouldn’t register at all, and other times it would register as a double-click, which became pretty frustrating during regular use. I decided to reach out to the company via email, and that’s where the experience really turned around. Their response was quick, the communication was crystal clear, and the whole process was smooth and hassle-free. Without much back-and-forth, they immediately sent me a replacement mouse. I’ve been using the new mouse since then, and it has been working flawlessly with no issues at all. Overall, while I did face a problem initially, the excellent customer support and the performance of the replacement have left me very satisfied. Highly recommend this mouse!
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Reviewed in the United States on April 14, 2026
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charlie badger
Houston, US
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This is an effortless and convenient way to purchase Amazon products. Unfortunately I am on it almost daily so the cash back feature is a plus.
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