SKU: 82343557872

PRO-TECH RETAINING COLLAR 1/2' KP RC-2

Sale price$18.29 Regular price$20.32
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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17

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Description

PRO-TECH RETAINING COLLAR 1/2' KP RC-2Retaining collar for 1 2' shaft router bits Retaining collar The retaining collar is used to secure a bearing with an internal diameter 1 2' to a 1 2' shaft router bit. Secure the retaining collar by tightening the supplied grub screw. consider safety for your health and the people around you General safety suggestions: It is advisable to always have the following items nearby and in a good condition Eye protection clean and scratch free Hearing

Retaining collar for 1/2' shaft router bits

 

Retaining collar

The retaining collar is used to secure a bearing with an internal diameter Ø 1/2' to a 1/2' shaft router bit.

Secure the retaining collar by tightening the supplied grub screw.

consider safety for your health and the people around you

General safety suggestions:

It is advisable to always have the following items nearby and in a good condition

  • Eye protection clean and scratch free
  • Hearing protection quality earmuffs
  • Dust masks discard old and dirty masks
  • Gloves for easy handling of material and hand protection
Wear Gloves
Eye Protection
Hearing Protection
Dust Mask

To use router bits safely (and to get the best results from your router), the router bits need to be installed properly into the router's collet. Improper installation of your bits can cause excessive chatter and could increase the likelihood that the bits will break when in use. 

Clean and sharp

First of all, before beginning any routing operation, check your bits to make sure that they are clean, relatively free of pitch, and most of all, sharp. If the bit is dull, chipped, is excessively burned or has any other defect, it should be sharpened or replaced before use. 

Correct collet and collet nut fit

Most router collets have a recess (groove) that needs to click into a circlip that resides inside the collet nut. Failing to ensure that the collet 'clicked' into the collet nut will cause you to struggle to remove the router bit after tightening. This could cause the collet to break or be removed by a technical repair centre.

 

Correct fit inside the collet

When installing the bit into the collet, do not tighten the collet with the bit 'seated.' Instead, insert the bit until the shank (bit shaft) reaches the bottom of the collet, then ease it out about 2 mm before tightening the collet.

When the bit is tightened, there should be no less than  2/3 's of the length of the shank in the collet. If your bit has a shank that is too short, then the bit should be replaced. 

 

Safety gear

There are a few other safety measures to keep in mind whenever you use your router. First of all, remember to always wear appropriate safety gear as indicated above.

Correct speed setting

Second, be sure to set your router to the proper speed for your router bit. Setting your router to an incorrect speed will not only affect the router's performance, but also can cause the bit to break much more easily and even cause bodily harm. The speed at which a router bit turns can be important. The typical router runs at about 22,000 rpm, which is fine for most bits. But as the diameter of the bit increases, you ll want to slow things down.

Also, before beginning any routing operation, be certain that you give the router's motor time to come up to full speed for the chosen setting. Beginning to cut before the bit is at full speed can give less than desired results. 

Speed Settings

Description Specification
Internal diameter Ø 1/2'


KP RC-2Router Bits > Spare Parts
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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
SKU: 82343557872

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4.4 ★★★★★
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Product Reviews
C
Verified Purchase
Chockalingam Ravi Sundaram
Houston, US
★★★★★ 5
Excellent Ergonomic Chair
Color: Black, Size: Pack of 1
I am incredibly impressed with this chair. The setup was a breeze and took me less than 20 minutes from start to finish. It is exceptionally comfortable, offering fantastic ergonomic support that keeps my back pain-free during long hours of sitting. The materials feel premium and highly durable. Plus, the included 5-year warranty is incredibly helpful and provides great peace of mind. I highly recommend it to anyone looking for a reliable workspace upgrade!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
M
Verified Purchase
Maria Velasco
Lexington, US
★★★★★ 5
Comfortable, Sturdy, and Great for Long Hours
Color: Black, Size: Pack of 1
I am very happy with this office chair. It was easy to assemble, feels sturdy, and is very comfortable to sit in for long periods of time. The ergonomic design provides good back support, and the adjustable features make it easy to find the perfect position. The mesh back keeps me cool throughout the day, and the chair rolls smoothly. Overall, it offers great quality for the price and has made working at my desk much more comfortable. I would definitely recommend it to anyone looking for a reliable office chair. ⭐⭐⭐⭐⭐
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
C
Verified Purchase
Cheeky M.
Omaha, US
★★★★★ 5
45 minutes assembly -- piece of cake. Nice chair.
Color: Black, Style: With Headrest, Color: Black, Style: With Headrest
Before I finally landed on this chair I read about a million articles with buying advice for ergonomic desk chairs, looked for second hand expensive chairs, read so many Amazon reviews. Obviously you can spend a whole lot of money on an ergonomic desk chair (even used ones), but I really didn't want to. I just bought this today, so the jury is out on long term wear, ,but I can say that the components feel solid, assembly was easy, it is *very* comfortable so far, and -- even more to the point -- VERY adjustable in so many different ways that physical therapists etc recommended in the articles I read. I am 5 foot 5; in order to put the chair at the right ergonomic height for my particular desk and keyboard, I need a footrest so my feet aren't dangling. But that would be the case with any chair in my setup. The headrest is great, the arms are soft and comfortable, the back support piece is perfect, and everything can be adjusted as you sit in it. Rollers are quiet and stable on laminate floor. The box was a good size and heavy enough (~32 lbs) to be awkward for an unfit middle aged lady to wrangle down apartment steps; however, the Amazon driver brought it straight to my door. The chair was carefully packed. Whoever wrote the assembly instructions (which are in English and Spanish) for this chair is some kind of technical writing genius -- I have never seen clearer or more easy-to-follow instructions. From slicing open the tape on the box to finished chair was 45 minutes for me. All you need for assembly is included -- also fabric gloves (for protecting your manicure? I guess?) and extra bolts and washers. Super buy. If I'd known I could get such an affordable and massive upgrade from my previous garbage chair I would have done it long ago. Great value for the money. I rarely write reviews but all the reviews I read helped me make a great decision, so here ya go.
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Reviewed in the United States on October 29, 2024
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Verified Purchase
Nate
San Leandro, US
★★★★★ 5
Comfort and ease
Color: Black, Style: With Headrest
Good chair all the functions work well I don’t really care for the armrest rotating but the fact they lift up an extend is nice. It’s comfortable. The lumbar is good. I don’t spend hours in a chair. It’s nothing fancy but definitely good for the price. Simple to put together seems durable enough.
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Reviewed in the United States on June 1, 2026
E
Verified Purchase
Estin T.
Charlottesville, US
★★★★★ 4
Good chair but....
Color: White, Style: With Headrest
I am 20 years old and a college student, I have horrible posture, and I game a lot, so my chair is VERY important to me. This chair was decently okay to assemble, and the initial sitting experience is good. You can feel yourself sink into the seat but not too much which is really nice. The arm rests are tiltable which is AMAZING because I always have a weird stance when I sit so this is perfect for me. However, there is one thing about this chair that is CRITICAL to know before buying. Perhaps this is my own fault, but the back isn't adjustable. What I mean by that is that you can't lean the back of the chair forward, kind of like how you can in a car seat. There is a pillow that you can push further into the back rest with a nob on the back but that barely helps. The headrest is also abysmal because I have to lean so far back into the chair just for my head to hit the head rest. I want a headrest that is always against my head. Not something that I have to tilt my head back into just for my head to hit it. That makes the chair extremely uncomfortable if I am trying to use the headrest. The chair also feels wobbly, I have had previous chairs where over time the gas lift wears out over time and when I sit on the chair the chair falls to the ground because the gas lift doesn't work anymore. However, that takes years of wear and tear. Sitting in this chair makes me feel like it is going to happen way sooner.  Also, the picture makes it look way whiter than it is in real life. It is kind of like a white that is getting to a pee color and it is kind of gross looking a little bit but it isn't that bad since it isn't fully that color. Another thing is that crumbs actually get stuck in the tiny holes in the seat cushion so you can't swipe it off your chair they are literally inside of it. I will leave a better review once I had used it for a while. If you are just looking for a nice chair and don't really care to much about the specifics it isn't a bad choice.
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Reviewed in the United States on July 1, 2025

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