BOSCH TI21A 21-delat titanborrset Assorted Assorted 21-delat set

Brand:BOSCH

3.7/5

79.39

Bosch titanbelagda metallborrkronor har designats för att tillgodose behoven hos tekniker för HVAC eller anläggningsunderhåll, entreprenörer och andra proffs som behöver solida, pålitliga borrkronor för allmänt bruk i högkolstål och lättmetall, samt trä och plast. Spetsen med delad punkt har konstruerats för start utan skridsko och rena, exakta hål. Borrkronan ger 2X längre livslängd än vanliga borrkronor, tack vare spetsdesignen och titanbeläggningen. Designen med tre platta skaft på bitar 3/16-tum och större främjar bättre grepp och skyddar mot halka. Inkluderar: (2) 1/16, (2) 5/64, (1) 3/32, (1) 7/64, (2) 1/8, (1) 9/64, (1) 5/32 , (1) 11/64, (2) 3/16, (1) 13/64, (1) 7/32, (1) 15/64, (2) 1/4, (1) 5/16, (1) 3/8, (1) 1/2

Inkluderade bitstorlekar: (2) 1/16, (2) 5/64, (1) 3/32, (1) 7/64, (2) 1/8, (1) 9/64, (1) 5 /32, (1) 11/64, (2) 3/16, (1) 13/64, (1) 7/32, (1) 15/64, (2) 1/4, (1) 5/ 16, (1) 3/8, (1) 1/2. Universella borrapplikationer utformade för allmänt bruk. Markering med hög synlighet ger tydligt markerad diameter. Tre platta skaft främjar bättre grepp på bitar 3/16-tum och större. Titanbeläggning genererar mindre friktion för 2X längre livslängd. No-skate spets för rena och exakta starter.
Batteries Included? ‎No
Batteries Required? ‎No
Country of Origin ‎China
Customer Reviews 4.7 4.7 out of 5 stars 1,573 ratings 4.7 out of 5 stars
Finish ‎Titanium
Included Components
Is Discontinued By Manufacturer ‎No
Item model number ‎TI21A
Item Package Quantity ‎1
Item Weight ‎1.1 pounds
Manufacturer ‎Bosch
Material ‎Titanium
Measurement System ‎Metric
Part Number ‎TI21A
Pattern ‎21-Piece Set
Product Dimensions ‎1 x 4 x 8 inches
Size ‎Assorted
Style ‎Assorted
Warranty Description ‎Product Defects Only

3.7

13 Review
5 Star
79
4 Star
14
3 Star
4
2 Star
1
1 Star
2

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Scritto da: TLS
Performs above expectation.
Just drilled over 100 holes. Last one as sharp as first.
Scritto da: Andrew K
Seems good
As described. Made in China
Scritto da: Danny Riggenbach
Drill bit.
Works on everything.
Scritto da: Alexander
Overall I'm happy with the purchase but I would probably not buy ...
I got the 21 piece titanium nitrate coating bits in a plastic index. Overall I'm happy with the purchase but I would probably not buy this set again. The plastic index is actually pretty nice. The bits are held in by tension, not to tight and not too loose. The hinge and locking mechanism are solid enough that they should hold up. The one bad thing about the index is that the sizes are not colored differently from the rest of the plastic so under certain lighting conditions it can be hard to see, not a show stopper though. The bits themselves were machined fairly well. They sat flush in the chuck and didn't "wobble" due to bending. The cutting edges are well centered and came pretty sharp from the factory. These are split point bits (which is what the "no skate tip" means), so they will be a little more difficult to sharpen when the time comes but worth the trouble. After drilling about 9 holes in 1/16 inch aluminum flashing and the pine wood behind the flashing I noticed that the titanium nitrite coating was completely worn from the outside edges of the flutes and about half worn from the point. This was a little disappointing, I was expecting the coating to last much longer. Once the coating is worn off the cutting edge you end up with a regular high speed steel bit, but 9 holes is such a low number, I feel like the black oxide might have been a better choice given the price delta and life of the coating. The shank of the larger bits (down to 3/16) do have three ground down points so you get a better torque transfer without the bit slipping in the chuck which is a plus. Interestingly these bits are only rated for up to 1500 RPMs which is a little on the low side; if you have a midrange drill you can easily surpass.
Scritto da: Steven Carbone
Awesome drill bits
I’m a maintenance mechanic college and I have to do many different tasks. I bought these drillbits for some of my tasks. They work great and stay sharp. Highly recommend!!!
Scritto da: Stewart Dennis
Not living where I can just run to the store and pick one of these up it was great to find one on line
I managed to brake this particular bit from a set of Bosch bits, they are very hard and brittle and if you get the smaller ones on a bind they will brake. Not living where I can just run to the store and pick one of these up it was great to find one on line. These have turned out to be some very good bits, you have to be careful with them, but that is so with many tools we use. The have done a good job for me on every thing I have needed to put a hole through and I use my bits for both wood and metal. You can find cheaper bits, but some times it pays to pay just a little more, you can also find better bits, but they will cost more as well, so if you are looking for some good bits to all around drilling these will do the job, just be careful not to bind them up, which can happen as they start to come through thinner pieces of metal.
Scritto da: AradoBlue
Used with Heli Coil
The bit polished the hole instead of cutting through the hardened steel. The stud broke on a A1 Auto Catalytic converter. The bit got to the weld and stopped short of completing the goal.
Scritto da: Glen Eden
Worked
Okay for my purpose.
Scritto da: Amazon Customer
Drill bits
Made for the job
Scritto da: K Cox
Interesting turn of events
Well i thought it was a decent set. But the first time using this set i punched a 1/2 hole through a pipe fence post. . Didn't make it half way through the first side and the bit exploded.
Scritto da: Amazon Customer J.Anderson
bits
These are excellent bits. The sizes are appropriate for normal use. The packaging is handy with easy access.
Scritto da: cricket in the rain
Drill bit working nicely..
Drill bit working nicely ... well ... I never actually notice it much, which, is a good thing in a drill bit. If you don't notice your drill bit, it's doing a good job. I got these TWO at this really good price and I won't do what I did to the one that these are replacing ever again. Promise.
Scritto da: DRACKO ALFA
Excelente calidad
Perforan excelente y no pierden el filo, muy recomendables.

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