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Description
RAM Finger Grip - Universal Phone / Radio Cradle with Drill Down MountRAM B 138 UN4 RAM Finger Grip Universal Mount with Drill Down Base The RAM B 138 UN4 pairs the RAM Finger Grip universal cradle with a 63. 5mm (2. 5") round drill down base and a medium B size double socket arm. The base bolts down to any flat surface using its AMPS hole pattern, giving you a permanent, vibration dampening mount for a phone, GPS, or handheld radio. Key Features Spring loaded, rubber coated Finger Grip fingers grip your device from
RAM-B-138-UN4 – RAM® Finger-Grip™ Universal Mount with Drill-Down Base
The RAM-B-138-UN4 pairs the RAM® Finger-Grip™ universal cradle with a 63.5mm (2.5") round drill-down base and a medium B-size double socket arm. The base bolts down to any flat surface using its AMPS hole pattern, giving you a permanent, vibration-dampening mount for a phone, GPS, or handheld radio.
Key Features
- Spring-loaded, rubber-coated Finger-Grip™ fingers grip your device from both sides; squeeze the ends to open
- Includes 3 sets of 4 fingers (small, medium, large) plus optional top and bottom supports
- 63.5mm (2.5") round drill-down base with AMPS hole patterns for a solid, permanent fix
- Medium B-size double socket arm with ball-and-socket adjustment at both ends
- Powder-coated marine-grade aluminium, stainless steel, and high-strength composite; backed by RAM Mounts' lifetime warranty
What's Included
- RAM-HOL-UN4U Finger-Grip™ universal cradle
- RAM-B-202U 63.5mm round drill-down base with 1" ball
- RAM-B-201U double socket arm
- RAM-B-238U 62 x 33mm diamond base with 1" ball
Dimensions & Specifications
- Round base diameter: 63.5mm (2.5")
- 4-hole AMPS pattern: 1.181" x 1.496" (30mm x 38mm)
- 3-hole AMPS pattern (120-degree): 1.812" (46.0mm)
- Arm overall length: 94mm (3.69")
- Arm socket-to-socket: 76mm (3")
- Ball size: 1" rubber ball (B series)
- Weight: 476g (1.05 lbs)
- Materials: powder-coated marine-grade aluminium, stainless steel, and high-strength composite
Compatible Devices
The Finger-Grip™ cradle fits 120+ GPS units, handheld radios, and phones across 11 brands. For the full compatible-device list and complete cradle dimensions, see our RAM-HOL-UN4U cradle listing. Always measure your device with any case fitted before ordering.
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
It is a keeper for sure!
Style: Steam Mop
This is about 100% better than I ever imagined. It has every feature I want and none of the stuff I don't want. It has a SUPER long cord, it heats up quick and works exactly as it is supposed to. I steam cleaned everything from my stained concrete floors, THE ENTIRE COUCH, and low pile area rugs. Love this thing and SO MUCH cheaper that the competing brands.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Works!
Style: Steam Mop
It’s so nice and works as expected. My mother in law switched hers for this one.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Great Starter Knife Set With Everything You Need
Size: 9-Piece, Style: Traditional Handle Design
5/5 stars for the Amazon Basics High Carbon Stainless Steel Knife Set. I have been really impressed with this set overall and it has handled pretty much every kitchen task I have thrown at it so far. Right out of the box the knives were insanely sharp and felt much higher quality than I was expecting for the price.
One of the biggest pros is the variety of knives included. It comes with basically every knife you would need for normal cooking and kitchen use which makes it a great all-in-one set. The knives also have a really nice weight to them and feel balanced in the hand instead of feeling cheap or flimsy. The grip is nice as well not slippery and while using it I feel like it stays put in my hand. They have held up well with regular use and have been easy to clean after cooking. The high carbon stainless steel has also done a good job resisting rust and staining which is important for a set that gets used often.
Another nice addition is the included honing rod which helps maintain the edge and keep the blades performing well over time. I did notice that the edge on the knife I use the most has started to wear down a tiny bit after extended use, but that is expected with pretty much any frequently used kitchen knife and can usually be maintained with regular honing.
As for cons, the wooden knife block is nice looking but I could see it potentially cracking over time if it is not taken care of properly or exposed to too much moisture. Other than that, I really do not have many complaints with this set.
Overall I think this is a fantastic knife set for anyone who just moved out and needs a complete kitchen setup or for someone wanting to replace an older worn out knife set. I actually gifted a set to my in-laws already and they have been loving it as well. I would definitely recommend it.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Good For Living On The Edge
Size: 9-Piece, Style: Traditional Handle Design
It was past time to replace my dollar store chef knife with a decent set with a bread knife and no steak knives. I first looked at Wüsthof as I always liked that brand, but never owned any. I used a borrowed paring knife for a while and was impressed with the quality. My line cooking time is over and though I would have liked to have a set of forged Wüsthofs, the price was too much for occasional use. My favorite chef knife was a 10" wide Victorinox/Forschner until it got stolen. I replaced it with an 8" version, but it was not wide and felt very different. Still my first choice for stamped high-carbon stainless steel blades. Again, the price for a set was a bit high for use once in a while.
I spotted the Amazon Basics 9-Piece Premium Kitchen Knife Block Set. Wait. A forged high carbon stainless steel knife set for that price? I read through all the reviews even the one with the picture of the broken knife, the set seems to be a good buy. Certainly better than a dollar-store knife and a few dollars more than an empty knife block.
While I haven't given them a good workout on food yet, I can tell they are very good given the price. I would have liked the chef's knife to be a bit wider, but I can live with it as is. I tried the index finger and thumb holding test on the chef knife and it was comfortable, but not so much on the Santoku knife. I am new to the Santoku Knife. I guess I would hold and use it more like a cleaver. The knives all feel pretty sharp out of the box, though like nearly all new knives, they need some fine-tuning to be really sharp.
Sure they are not a top-name branded knife set and if I was still a working line cook I would choose a different set, but as a casual home cook, I like these very much.
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Reviewed in the United States on February 2, 2023
★★★★★ 5
Great set of knives balanced between cost and quality
Size: 9-Piece, Style: Traditional Handle Design
I was in the market for a new set of knives because my old set, a long ago gift from my well intentioned parents, was serrated. I have also had some "fancier" knives over time as well including a Wushtof chef's knife and a Shun santoku knife. So when I started looking to replace my knife set, I started looking at various different brands.
My main goal was to find a balance between the quality of the knives and the cost, as in many cases, knives can get expensive pretty quickly. I also knew that I didn't really need the steak knives that often come with these sets because we hardly entertain, which means not a significant need for steak knives.
When I saw these, I thought "This can't be for real for this price..."
The knives work well, offering all the sizes and types I need for basic cooking. They are balanced fairly well, and while I could see some people not liking the plastic handles rather than wood, it doesn't really bother me. They are comfortable both in my grip and also in my wife's, who has smaller hand than I do. We find them easy to work with, from meats to fruits and veggies. They feel pretty solid, and appear to be full tang knives (all one piece of metal down through the handle, not welded together). I am pretty confident they will hold up for years with regular care, all at a price that is at or below many other introductory sets of knives.
The block is a basic block of solid wood, as you would expect with most knife sets. The holes for the knives aren't cut exactly to the blade sizes, but honestly it doesn't really matter that it's not exact, as all the knives are able to fit in the slots. The rubber feet keep it in place on the counter, and the block is sealed/laminated to stand up to standard kitchen wear and exposure.
I would recommend this set to anyone who is looking for a good balance between quality and cost, who needs a good set of knives to get them going in the kitchen and be functional, without breaking the bank.
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Reviewed in the United States on July 3, 2015
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