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Loc-Line - 50813 Coolant Hose Assembly Kit, Acetal Copolymer, 7 Piece, 1/2" Coolant Hose ID

4.7 4.7 out of 5 stars 673 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Cutting Tool Coolants by Loc-Line
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Purchase options and add-ons

Brand Loc-Line
Material Acetal
Color Blue, Orange
Item Weight 0.18 Pounds
Maximum Pressure 20 Pound per Square Inch

About this item

  • Kit of 7 acetal copolymer modular hose components includes 2 hose segments, 3 round nozzles, and 2 NPT connectors
  • Components attach to each other by the Loc-Line ball-and-socket design, and the NPT connector has one end threaded for connecting to NPT pipe
  • Acetal copolymer plastic resists corrosion and moisture, and can be used with acetone, alcohol, ethyl, greases, oils, commercial dish detergents, gasoline, lacquer solvents, and sodium hydroxide
  • Maximum operating temperature of 170 degrees F
  • Meets NSF/ANSI standards 14, 51, and 61 for drinking (potable) water
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Frequently bought together

Loc-Line - 50813 Coolant Hose Assembly Kit, Acetal Copolymer, 7 Piece, 1/2" Coolant Hose ID
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Loc-Line Coolant Hose Component, Acetal Copolymer, Segment, 1/2" Hose ID, 5-1/2" Length (Pack of 2),51801, Blue
$7.25 ($3.63/Segments)
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Product details

  • Product Dimensions ‏ : ‎ 5.4 x 2.6 x 0.9 inches; 2.88 ounces
  • Item model number ‏ : ‎ 50813
  • National Stock Number ‏ : ‎ 5330-01-460-0688
  • Date First Available ‏ : ‎ January 17, 2012
  • Manufacturer ‏ : ‎ Lockwood Products
  • ASIN ‏ : ‎ B006R9OFGS
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.7 4.7 out of 5 stars 673 ratings

Product Description

The Loc-Line coolant hose assembly kit is made of acetal copolymer plastic and includes 7 components to build an assembly: 2 Loc-Line hose segments, 3 round nozzles for outlet flow, and 2 NPT connectors to attach Loc-Line hose to NPT threaded male pipe. The acetal copolymer plastic resists corrosion and moisture and can be used with acetone, alcohol, ethyl, greases, oils, commercial dish detergents, gasoline, lacquer solvents, and sodium hydroxide. The components have a maximum operating temperature of 170 degrees F. The material meets National Sanitation Foundation (NSF)/American National Standards Institute (ANSI) 14, 51, and 61 specifications for use with drinking (potable) water, and complies with Registration, Evaluation, Authorization of Chemicals (REACH) and Restriction of the Use of Certain Hazardous Substances (RoHS) standards. The components connect to other Loc-Line components by a ball-and-socket design that snaps together for a tight seal.

SpecificationsMaximum Pressure, 1/4" Inner Diameter30 psi (up to 110 psi with element clamp)Maximum Flow, 1/4" Inner Diameter250 gallons/hourMaximum Pressure, 1/2" Inner Diameter20 psi (up to 110 psi with element clamp)Maximum Flow, 1/2" Inner Diameter478 gallons/hourMaximum Pressure, 3/4" Inner Diameter10 psiMaximum Flow, 3/4" Inner Diameter1,140 gallons/hour

Lockwood Products manufactures the Loc-Line modular hose system of low-pressure hose and couplings used for coolant, air delivery, smoke and dust removal, and other applications. The company, founded in 1981, is headquartered in Lake Oswego, OR.

What's in the Box?

  • Loc-Line acetal copolymer hose segments (2)
  • Loc-Line acetal copolymer round nozzles (3)
  • Loc-Line acetal copolymer connectors, NPT (2)

From the manufacturer

About Us

After becoming frustrated by the existing coolant hose products; all of which suffered from a variety of shortcomings, Arnold Lockwood conceived the idea for the modular hose that became Loc-Line. The shortcomings of the existing products included, metal coolant hoses that would not stay where they were positioned and plastic hoses with metal positioning rods that broke.

In 1981 Lockwood Products was formed to develop and distribute Loc-Line.

Loc-Line quickly became the standard for coolant delivery around the world and was easily recognized by our Blue and Orange colors and consistent high quality.

Loc-Line is still in modular hose and continues to innovate in the modular hose field. Loc-Line is used not only as a coolant hose but for air delivery, smoke and dust removal vacuum systems, agriculture, third arm uses including positioning cameras, lights and items for handicap assist.

We here at Lockwood Products, are proud to have originated the modular hose Loc-Line that remains the standard for the industry worldwide!

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
673 global ratings

Customers say

Customers like the performance, quality, ease of installation, value, fit and accessories of the hardware tubing. For example, they mention it works well for stationary applications, has a very solid construction and is reliable. Some appreciate the leakage, and accessories.

AI-generated from the text of customer reviews

33 customers mention33 positive0 negative

Customers are satisfied with the performance of the hardware tubing. For example, they mention it works well for stationary applications, and the cheap knockoffs work well too.

"Works great! I wanted to cut aluminum on my CNC and needed a consistent way to apply water coolant...." Read more

"This worked perfectly. No complaints." Read more

"...works fine, prob will paint it black as quite the ugly/cheap looking color imo" Read more

"Works good, use it a lot on the cnc, I recommend the pliers" Read more

26 customers mention26 positive0 negative

Customers are satisfied with the quality of the hardware tubing. They mention that it has a very solid construction, and the actual locking design is very sturdy. Some say that the product is reliable and works great.

"...The joints are firm and the overall quality seems to be far superior to the original Delta part...." Read more

"...Modular Loc-Line elements fit together nice and solid and retain their shape, while being easily manipulated into desired custom shapes...." Read more

"Good quality, good price" Read more

"...yet or hit them with a soldering iron.. The loc-line brand is tough quality stuff though that that I have dripped hot glue onto, have dripped solder..." Read more

16 customers mention12 positive4 negative

Customers find the installation of the hardware tubing to be easy. They mention that it snaps together without too much trouble, and that the applications are endless.

"...If you have a firm grip, no tools are needed to install. It costs about a fifth of the Delta replacement part. Highly recommended." Read more

"had no problem popping together with my hands though it did give me a bit of fuss. twist and power down no other trick to it...." Read more

"...Easy modifications to solve problem. It's not easy to add a single piece but that's not a deal breaker." Read more

"...Perfect fit and 5 minute install with only a small crescent wrench" Read more

12 customers mention10 positive2 negative

Customers like the value of the hardware tubing. They mention that it saves them lots of money and is a nice kit.

"...hose for several different scroll saw brands and will save you lots of money!" Read more

"Good quality, good price" Read more

"...Loc-line is by far the best quality for this style hose, well worth the money after seeing so many cheap Chinese knockoff versions fail." Read more

"...for this exact part, luckily I found it here on amazon for a realistic price, everything fits perfect thanks again!!" Read more

9 customers mention9 positive0 negative

Customers are satisfied with the fit of the hardware tubing. They mention that the attachments and push connect fitting are tight.

"They just work!! Perfect fitting." Read more

"...lot I'd highly recommend spending the $12 on the tool - these attachments are tight!" Read more

"Perfect fit and tight" Read more

"...Perfect fit and 5 minute install with only a small crescent wrench" Read more

7 customers mention5 positive2 negative

Customers like the hardware tubing for its leakage resistance. They mention that it works perfectly and does not leak.

"...Zero leaks...." Read more

"No leaks at any joint like the reviews say of the cheap copies. I'm using mine for water at a low to medium pressure. You do not need the pliers...." Read more

"Every single joint slowly leaks cutting oil. It has made a huge mess overnight in my shop...." Read more

"...Works great. Using about 10psi air and no leaks, no issues." Read more

5 customers mention5 positive0 negative

Customers like the accessories. They say they're perfect for reel grinders, laser cutter engravers, and Delta Scroll Saws. Some say they are also good for cutting aluminum using a flood of water.

"Perfect for our reel grinder. I forgot how stiff these flex hoses were supposed to be...." Read more

"Great accessories for grinder to direct coolant on part." Read more

"Awesome! Perfect for cutting aluminum using a flood of water!..." Read more

"Perfect for Delta Scroll Saw..." Read more

Special pliers & heat gun recommended
5 Stars
Special pliers & heat gun recommended
The 0.25” works great on my DeWalt scroll saw. I was reluctant to purchase the OEM part from the reviews and I’m so glad I bought this instead. I was able to easily snap on the arm to my machine after heating the first segment with a heat gun. For the second half of the arm (it comes in 2 pieces) and the nozzle it was nice to have the special clamp pliers. Comes with three different sized nozzles and I used the middle one.
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Top reviews from the United States

Arjun
5.0 out of 5 stars Awesome! Perfect for cutting aluminum using a flood of water!
Reviewed in the United States on October 1, 2022
Size: 1 Count (Pack of 1)Verified Purchase
The media could not be loaded.
 Works great! I wanted to cut aluminum on my CNC and needed a consistent way to apply water coolant. The nozzle is of a good (small) diameter, which means it can shoot a good amount of pressure in a directed stream, thereby clearing chips and providing sufficient cooling.

I also purchased this mist/spray mount, but since I prefer an actual stream of liquid rather than a mist/spray, I am going to use the enclosure/box from this item: https://www.amazon.com/gp/product/B071DXGGP4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

And I have removed the hose that it came with, and instead put this product (Loc-Line 40413 Coolant Hose Assembly Kit) in its place. (that's what you see in the video). This way, I will be able to use the housing to mount it on my CNC's Z axis, while having the jet stream that I like rather than the mist spray.

I'm using a simple aquarium pump ($10, up to 80 gallons per hour of flow) to make this work.

Highly recommend!
One person found this helpful
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AlphaBravoTango
5.0 out of 5 stars Old reliable.
Reviewed in the United States on December 10, 2023
Size: 1 Count (Pack of 1)Verified Purchase
They just work!! Perfect fitting.
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LNMRosen
5.0 out of 5 stars Does the job
Reviewed in the United States on November 29, 2023
Size: 1 Count (Pack of 1)Verified Purchase
This worked perfectly. No complaints.
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Horst
5.0 out of 5 stars Perfect for Delta Scroll Saw
Reviewed in the United States on February 14, 2023
Size: 1 Count (Pack of 1)Verified Purchase
I inherited a Delta Scroll Saw from my dad, and nearly all the joints that make up the dust blower were cracked and the blower arm could no longer hold its shape. The Delta replacement part was outrageously priced. This piece worked as a direct replacement. The joints are firm and the overall quality seems to be far superior to the original Delta part. If you have a firm grip, no tools are needed to install. It costs about a fifth of the Delta replacement part. Highly recommended.
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Horst
5.0 out of 5 stars Perfect for Delta Scroll Saw
Reviewed in the United States on February 14, 2023
I inherited a Delta Scroll Saw from my dad, and nearly all the joints that make up the dust blower were cracked and the blower arm could no longer hold its shape. The Delta replacement part was outrageously priced. This piece worked as a direct replacement. The joints are firm and the overall quality seems to be far superior to the original Delta part. If you have a firm grip, no tools are needed to install. It costs about a fifth of the Delta replacement part. Highly recommended.
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2 people found this helpful
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Amazon Customer
5.0 out of 5 stars Awesome replacement for parts washer nozzle
Reviewed in the United States on March 13, 2024
Size: 1 Count (Pack of 1)Verified Purchase
Used this to replace my harbor freights parts washer hose and it’s awesome! Comes with different tips which can increase pressure or decrease. I choose to decrease, less splashing around
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Joseph
4.0 out of 5 stars pretty "cool"... ha ha
Reviewed in the United States on June 27, 2021
Size: 1 Count (Pack of 1)Verified Purchase
had no problem popping together with my hands though it did give me a bit of fuss. twist and power down no other trick to it. if you are going to need to make different links and move it all the time don't bother with their wrench just buy another kit they're like the same price. i can't attest to air tightness or the plastic hose fitting - but wouldn't bet on it.

i feed a 1/4" pneumatic hose through all the way to the end. i think it'd be nice if one of the bases weren't round so you could zip tie it to something but i'm going to make a mount anyways. works fine, prob will paint it black as quite the ugly/cheap looking color imo
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HouseOfDIY
5.0 out of 5 stars Great point-of-application solution for liquid delivery
Reviewed in the United States on February 15, 2022
Size: 1 Count (Pack of 1)Verified Purchase
Used in combination with a wye attachment and some 1/4" clear tubing and inline GFCI to deliver stream of water to a DIY masonry saw setup. Worked like a charm cutting 20 linear feet in basement slab - zero dust! Saved myself $300 over buying a ready-made masonry saw. Now I can disassemble and repurpose into something else. Modular Loc-Line elements fit together nice and solid and retain their shape, while being easily manipulated into desired custom shapes. Zero leaks. I was able to make do without the dedicated tool for separating / attaching the "links" between modular loc-line elements but if you're going to have to work with this stuff a lot I'd highly recommend spending the $12 on the tool - these attachments are tight!
Customer image
HouseOfDIY
5.0 out of 5 stars Great point-of-application solution for liquid delivery
Reviewed in the United States on February 15, 2022
Used in combination with a wye attachment and some 1/4" clear tubing and inline GFCI to deliver stream of water to a DIY masonry saw setup. Worked like a charm cutting 20 linear feet in basement slab - zero dust! Saved myself $300 over buying a ready-made masonry saw. Now I can disassemble and repurpose into something else. Modular Loc-Line elements fit together nice and solid and retain their shape, while being easily manipulated into desired custom shapes. Zero leaks. I was able to make do without the dedicated tool for separating / attaching the "links" between modular loc-line elements but if you're going to have to work with this stuff a lot I'd highly recommend spending the $12 on the tool - these attachments are tight!
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Edwin K. Ferguson
5.0 out of 5 stars Huge Money Saver For Me!
Reviewed in the United States on August 16, 2023
Size: 1 Count (Pack of 1)Verified Purchase
I purchased these to make repairs on the hose that comes with my Dewalt scroll saw, saving about 2/3 the cost of the replacement hose sold by Dewalt.

Pro tip: these are a perfect replacement hose for several different scroll saw brands and will save you lots of money!
One person found this helpful
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Top reviews from other countries

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Zenki_boss
5.0 out of 5 stars Quality
Reviewed in Canada on November 26, 2023
Size: 1 Count (Pack of 1)Verified Purchase
Perfect for my lathe, direct coolant exactly where I need it and super flexible.
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Alejandro Y.
5.0 out of 5 stars buen producto
Reviewed in Mexico on January 18, 2023
Size: 1 Count (Pack of 1)Verified Purchase
producto de buena calidad
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David Phillips
5.0 out of 5 stars Are you a Certifier? Fits the photometer!
Reviewed in Canada on June 11, 2022
Size: 0.5 InchVerified Purchase
The 3/8's set fit the TEC and ATI photometer wand's factory knuckles. A great way to extend your scanning reach by that 6" you need to scan ceiling filters without a ladder.
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CJ
5.0 out of 5 stars Great product
Reviewed in the United Kingdom on May 17, 2021
Size: 0.5 InchVerified Purchase
I use this tube to enable me to have a water bottle attached to my wheelchair so that I can have a drink at any time.
2 people found this helpful
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Paul-Toronto
5.0 out of 5 stars Great !
Reviewed in Canada on July 7, 2023
Size: 1 Count (Pack of 1)Verified Purchase
Used this to replace my air hose on my Dremel scroll saw. Easy to assemble with the tool. Holds position. Great product.
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