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Bar holders are made of high quality steel with coated, inserts with Tin-coated are made of carbide,moistureproof, rust-proof,for long time use
Round shanks allow the operator to set positve or negative rake,chip breaker eliminates long stringer chips
Indexable Boring Bar Set Size:
Used for Turning internal hole, reaming, copying,etc., specially used for semi-finishing on the existing hole cutter,fit boring machine, lathe machine
Boring Bar Size:
- Overall length: 2-3/4'';Bore Depth: 1-1/4”, Min Bore: 7/16''
- Overall length: 3'';Bore Depth:1-1/2”, Min Bore: 1/2'
- Overall length: 3-5/8'', Bore Depth: 2-1/8”,Min Bore: 7/16''
- Overall length:: 4''; Bore Depth: 2-1/2”,Min Bore: 1/2''
Carbide Inserts: TCMT 21.51( TCMT110204 ) Length:10.25mm, Thickness:2.5mm
Screw Size:M2.5×5 M2.5×6
Key: T8
Packing:
- 4pcs Boring Bar Holers with Carbide inserts
- 1pcs Key
- 1pcs Alumium Carrying Case
Carbide Insert:
We also provide Carbide Insert for this kit
Please search the Asin of this item B07Q2HNGVF
Customer
Reviewed in the United States on February 1, 2025
High quality and consistent. First use was on an ancient Plymouth cast iron bellhousing- had to bore the registry to adapt an A833 OD bearing retainer apx .500 x/y and .070 z. That's a fair amount of material... the insert still looks very much as new after completion, so I'm pretty happy. Proper fit into the boring bar as well. Will buy more of this brand. Good mid/low price bargain for sure.
patrick
Reviewed in the United States on February 25, 2024
Does what I bought it for
Hunter Walker
Reviewed in the United States on March 27, 2023
These boring bars seem to vibration really bad. I have spent days playing with speeds and feeds to still have to much vibration. Larger in diameter boring bars are going to be a better choice.
Glenn Forshee
Reviewed in the United States on February 11, 2021
only used the smallest one so far but no issues
Slange
Reviewed in the United States on September 8, 2019
The quality looks good (fit and finish). I would have given them 5 stars but I haven’t had a chance to use them yet. I will see over time if the inserts are readily available.Vendor shipped quickly!
Joseph Marsico
Reviewed in the United States on August 31, 2019
Boring bars work great. Each bar came with its own insert and the triangular inserts have a total of 3 usable edges. Really good value
DaKine
Reviewed in the United States on December 2, 2019
So far so good. I use these mainly on a hardinge lathe as well as a 1998 HAAS lathe. They work quite well through plastics, aluminum, and mild steels.
Chia Chun Lai
Reviewed in the United States on December 11, 2019
High quality tools for small money. Shipping went very well, arrived within 24h in nicely packed box. I definitely recommend the set for any type of aluminum and soft steel projects
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