Reddit mentions: The best indexable inserts
We found 8 Reddit comments discussing the best indexable inserts. We ran sentiment analysis on each of these comments to determine how redditors feel about different products. We found 7 products and ranked them based on the amount of positive reactions they received. Here are the top 20.
1. THINBIT TT21CR Uncoated Solid Carbide Threading Tool, 27 to 56 threads per inch, 0.125" Minimum bore, 0.419" Reach, Heavy Duty Elliptical neck and 1/8" Shank
- See Downloads section below item photos for detailed product information, technical information and compatible toolholders.
- .125" Minimum bore with .419" tool reach. Heavy Duty Elliptical neck. .020" projection.
- 27 to 56 threads per inch, single lead, 60° Right Hand internal threads.
- Uncoated DURA-MAX 2000 Threading insert for steel, cast iron and stainless steel with interrupted cuts.
- 1/8" Diameter shank, 1.404" Overall length.
Features:
Specs:
Height | 0.13 Inches |
Length | 1.4 Inches |
Number of items | 1 |
Width | 0.13 Inches |
2. RIKON 4-Piece Woodturning System
- See Downloads section below item photos for detailed product information, technical information and compatible toolholders.
- .125" Minimum bore with .419" tool reach. Heavy Duty Elliptical neck. .020" projection.
- 27 to 56 threads per inch, single lead, 60° Right Hand internal threads.
- Uncoated DURA-MAX 2000 Threading insert for steel, cast iron and stainless steel with interrupted cuts.
- 1/8" Diameter shank, 1.404" Overall length.
Features:
Specs:
Height | 2.1 Inches |
Length | 19.7 Inches |
Weight | 6.5918216338 Pounds |
Width | 9.1 Inches |
3. Cobra Carbide 41800 Solid Carbide Turning Insert, CM14 Grade, Multilayer Coated, TT Style, TT 321, 1/8" Thick, 1/64" Radius (Pack of 10)
Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systemsMulti Layer coating TiN/TiC/TiCN/TiN for turning and milling carbon and alloy steels, tools steel and stainless steelProvides longer tool life...
Specs:
Number of items | 10 |
Size | TT 321 |
4. Surebonder 8510 6-32, 8-32, 10-24, 10-32, 1/4-20 Threaded Insert Tool
- This durable steel tool is ideal for threading inserts into thin layers of plastic, fiberglass or metal, including auto sheet metal (not recommended for wood)
- Comes with five threaded mandrels and nose pieces (6-32, 8-32, 10-24, 10-32 and 1/4-20) to set five insert sizes
- Comfort grip, spring-loaded handle and weight of less than 1.8 lbs. make for ease of use
- Depth-stop dial on handle prevents thread damage that could occur from over-squeezing
- Recommended for use with steel Surebonder Quik-Threads Threaded Rivets or other aluminum rivet nuts.
- Inserts into thin metal, plastic or fiberglass
- Comes with 5 threaded mandrels and nosepieces
- Nosepiece sizes included: 6-32, 8-32, 10-24, 10-32, 1/4-20
- Comfort grip
- Inserts sold separately.
Features:
Specs:
Height | 10.75 Inches |
Length | 4.75 Inches |
Number of items | 1 |
Weight | 1.9 Pounds |
Width | 1.75 Inches |
5. Micro 100 QRR-039-16X Quick Change Retaining Ring Grooving Tool, Solid Carbide Tool, 0.039" (1.00 mm) Groove Width, 0.100" (2.54 mm) Projection, 0.370" (9.4 mm) Minimum Bore Diameter, 1.000" (25.4 mm) Maximum Bore Depth, 0.3750" (9.5 mm) Shank Diameter, 2.5" (64 mm) Overall Length
- Designed for generating retaning ring grooves in bores .180" and larger
- Polished split face for improved edge retention and chip evacuation while reducing galling
- Coolant fed enabled shank design
- Sharp corner profile
- Proprietary Micro-Quik quick change system maximizes productivity through reliable accuracy and locational repeatability
Features:
Specs:
Number of items | 1 |
Weight | 0.1 Pounds |
6. 30PCS CNMG 431 + WNMG 431 + TNMG 331 CNC Lathe Indexable Solid Carbide Turning Insert Blade for Lathe Turning Tool Holder for The Finishing of Steel
- Modle:10pcs CNMG 431 + 10pcs WNMG 431 + 10pcs TNMG 331 .
- Material: Carbide ,Coating : PVD,For processing :finishing of steel
- The inserts has high hardness, low friction coefficient, good wear resistance and chemical stability .
- Carbide insert 30 pieces in 3 box, packed in plastic containers, safe and easy to store .
- Metal surface treatment, good wear resistance, good chemical stability . If you need a indexable turning tool holder that matches the insert, search for ASIN:B076WTPBVK , B07TTL32HW and B07B8XNH98
Features:
Specs:
Color | 30PCS CNMG 431 + WNMG 431 + TNMG 331 |
Size | CNMG 431 + WNMG 431+ TNMG 331 |
Weight | 0.11684499886 Pounds |
7. 3PCS 5/8" CNC Lathe Excircle Indexable Carbide Turning Tool Holder Bit Set MTJNR1616H16 + MWLNR1616H08 + MCLNR1616H12 With 3pcs wnmg431, cnmg431, tnmg331 Indexable Carbide Inserts (right cutting)
- ★Package Included:3pcs indexable carbide turning tool holder (MTJNR1616H16 + MWLNR1616H08 + MCLNR1616H12 ) ; 3pcs indexable carbide turning inserts (CNMG431 + WNMG431 + TNMG331) ; 3 sets wrenches.
- ★Shank Diameter (length×width): (16*16mm ≈ 5/8"x5/8" ) ; Overall Length:(100mm ≈ 3-7/8" ) ,Cutting Direction:right hand.
- ★The material of the turning tool holder is 40Cr steel, black oxide smooth finish on each turning tool holder marked with tool holder style and shank size.
- ★The material of the insert is carbide,the inserts can be used for finishing or semi-finishing steel, the inserts has high hardness, low friction coefficient, good wear resistance and chemical stability.
- ★If you need more matching insert or 5/8" left turning holder set, you can search for B07G386Y3B , B07Q1117MJ (inserts) or B07B8XNH98 , B07TTL32HW (holder)
Features:
Specs:
Weight | 1.72 Pounds |
🎓 Reddit experts on indexable inserts
The comments and opinions expressed on this page are written exclusively by redditors. To provide you with the most relevant data, we sourced opinions from the most knowledgeable Reddit users based the total number of upvotes and downvotes received across comments on subreddits where indexable inserts are discussed. For your reference and for the sake of transparency, here are the specialists whose opinions mattered the most in our ranking.
There are smaller internal threading tools, I have seen ones that hold carbides down to 5mm, but with everything they are still around 1/4" minimum hole size. You can also find some from thinbit.com, they have a line called microbit that can get really small, from their website "For internal diameters of .077" and larger. ". Amazon has some of them like https://www.amazon.com/MICROBIT-Uncoated-Carbide-Threading-Elliptical/dp/B01MTIZ8W3 and the price isn't horrible, but be careful to follow the recommended feed and speed suggestions, would hate to break one. If you search "thinbit" you can find other offerings too.
One other option is cut an external thread and make a tap that matches what you want and tap the hole.
If you make your own, a good reference is https://sct-usa.com/wp-content/uploads/2015/08/Catalog2015_081015_QUALIFIEDTHREADTOOLS.pdf, this is also an option instead of the microbits above, but I haven't seen prices of these tools.
OK, going to leave the above info, but was looking around Amazon and found the "Micro 100" line, search for "Micro 100 single point", the price is right, and you can get a good selection of sizes. I think this might be the way to go. Here is an example https://www.amazon.com/Micro-100-Internal-Threading-Projection/dp/B00Q8M1HQ0 but look around to get what fits your needs best.
Thanks for the question, I have ordered a couple of the Micro 100 ones to try out, as I hadn't seen them before and they look really nice for the job.
I bought a set of carbide tools from ebay and turned the handles myself. It was a good first project and I have something I am proud of. That said, my local shop sells a lot of these and they recommend them over more expensive tools to start out. https://www.amazon.com/Rikon-Four-Piece-Turning-Carbide-Inserts/dp/B078XLQ3TM
The rods come painted or something, and seldom come with instructions to scrape the coating off before use. It would be good to carry a few cheap rods in your environment to see if the coating is effective. You can get like 5 rods - 8mm thick on Amazon for a few dollars. To me that makes sense to keep one to play with, and one unused out of the same lot to keep in reserve (and a few lighters too)
>I'm looking to switch to a flint/steel or flint/titanium setup for my backup. Just wondering if anyone knew of a good modern alternative to flint?
Uh, any silicon based rock? Quartz? Chert? I guess you might be limited as to what you can find in your area. A tungsten-carbide lathe tooling insert link for photo, not an endorsement might work on steel or titanium and meets your criteria for "modern alternative". An impractical modern alternative is a battery powered angle grinder.
(Tungsten-carbide works great on ferro rods, but anything hard and sharp works on them, it's a low bar.)
So it's important to note that with flint/steel or flint/titanium, the metal is the thing that is generating the sparks, not the flint. That's opposite of what's going on with a ferro rod. You can use a knife or broken chunk of glass, or nearly anything hard to scrape the rod, and it's the rod making the sparks.
The sparks struck off a steel are much less hot than a ferro rod. Titanium is better than iron, but still doesn't give you the shower of sparks you get from a ferro rod.
The part you have called a washer, isn't, it is the flange of the rivnut that is now spinning in the seat tube as it has lost clamp force.
Try u/twodogsfighting suggestion and use an impact gun (if you have one) to remove the fastener, if it won't come out, you can try a small amount of cyanoacrylate (super glue) to see if you can get it to wick into the joint and hold enough to allow the fastener to be removed.
If this doesn't work, then you will have to utilise a destructive method. Starting with the plastic bottle cage, to gain access to the rivnut, then try placing a screwdriver between the fastener and the rivnut and twisting to lock the nut, then impact the fastener out.
If there is room, you may be able to grab the rivnut flange with pliers or vise-grips, then undo the fastener.
Last resort, cut the fastener and grind of the flange of the rivnut and then retrieve the remains by removing your seat post.
Take the frame to a bike shop to have them install a new rivnut, unless you want to invest in the setting tool
Good Luck
Sounds like you're looking for an internal retaining ring (or O-ring) grooving tool. These have carbide cutting edges, and come in different profiles so you can cut the proper shaped groove for your O-ring or retaining ring, e.g., square shaped slot, v-shaped, half-round, etc. Try a Google search for "internal retaining ring grooving tool" and you'll find enough to help you get started finding what you need. Here's a link to one on Amazon as a start:
https://www.amazon.com/Micro-100-QRR-039-16X-Retaining-Projection/dp/B00Q8NR718/ref=sr_1_12?gclid=CjwKCAjwk7rmBRAaEiwAhDGhxBH-hio7eC3-DCH1OsZ3_IEoA2OA8NjA8M-hxPeznLraCYKp8uteNRoCcCQQAvD_BwE&hvadid=323144562441&hvdev=c&hvlocphy=9003944&hvnetw=g&hvpos=1o2&hvqmt=b&hvrand=13326339003767944250&hvtargid=aud-676677759484%3Akwd-527024404990&hydadcr=28602_10166550&keywords=retaining+ring+grooving+tool&qid=1557111657&s=industrial&sr=1-12
Like these https://www.amazon.com/dp/B07G386Y3B/ref=cm_sw_r_apa_i_-ELLDbZSCDGA5
I keep a Carbide Turning Tool Holder in my car,RC for just these kind of people, does a lot of damage to a car.