Silverline 427549 Blacksmiths Drill Bit 25 mm

So I purchased this after reading the reviews (some good some bad).Right let’s clear some things up;Does it fit a domestic drill, yes! A domestic drill standard chuck should be up to 13mm so this will fit.Is it sharp? Yes but it’s not made of a particularly hard material so don’t expect it to last forever. But of course you can regrind the tip.Is it accurate? Well it’s OK I wouldn’t use it for precise drilling but it’s accurate enough for diy/ home engineer.Value? Amazing!!! It’s cheap as chips, a high quality drill bit of this size would be ten times the price.Overall... for the money it’s great value, I used it to open up some nylon bushings and it was great and left a smooth face.Yes it’s a little inaccurate in size and won’t last forever but for a fiver I see it as a consumable item, use it for a few jobs until it’s worn out bin it and get a new one.

Can't find any faults with this bit. Good quality and has drilled though 1/2 inch steel no problem

I was a little hesitant about buying this bit going by some of the other reviews on here, but at the time I needed one for a one off job and the price was right.I've so far found this to be a half decent bit of kit, having used it to drill multiple holes through scaffold poles and sheet steel up to 6mm thick and it's still going. It does cut with relative ease provided that plenty of oil is used and the rotation is very slow, but it does catch and snag on the metal from time to time. If not kept well oiled when cutting, these bits will quickly dull and the steel becomes too soft to re-sharpen easily.The only real issue I've got with this is it's sale description, particularly the bit about a reduced shank - there basically isn't one. The very misleading sale picture implied to me a shank diameter of 7 to 8mm or so which would indeed fit most domestic drills, but the actual bit only reduces by 1mm leaving a shank of 13mm - far too big for most smaller drills. I also found the total length of the bit to be about 151 mm. I used this in a Bosch CSB percussion drill and it fitted and went fine, but I can see why some people couldn't get it to fit their drills. Definitely check your drill beforehand - it's a chunky thing! Other than that, the general shape of the bit is slightly different, but it's still 14mm.Overall, for the money you pay, I think this is a decent tool that can withstand a beating providing it's looked after - plenty oil and slow rotation is vital, and I would buy another one if needed. Just don't expect to crack any safes with it.

This works well. I used a pilot hole first and this made the drilling a doddle. Keep the drill speeds low and use a side handle next to the chuck to stop snatching.

It tured round like I expected

I had read some reviews that this drill bit was not as described as it didn't fit their drill and was a bit worried. The drill fits perfectly in my normal domestic electric drill with a 13mm chuck. I think the problem people have had is they are trying to use this in a smaller cordless drill that only has a 10mm chuck which probably would not be man enough for drilling a hole that size in anywise.

Just the drill bit I needed for a particular small job and it performed as it should. Don't know what one of the reviewers meant when he remarked about the shank diameter not being as advertised. What you see in the picture is exactly what I got and not being a professional I used in my common cheapo drill with a common cheapo chuck, and it did the job.

There was a massive casting flaw in it, end to end.Had I actually tried to use it to drill anything harder than butter it would probably have exploded.I opened the package, took one look at it and binned it.Total waste of time and money, and potentially hazardous to-boot.

très bonne qualité du produit

Leggendo le recensioni negative ero indeciso nell'acquisto. Una punta perfetta ad un ottimo prezzo. Montata sul tornio ho forato alcuni pezzi di acciaio senza problemi, ovviamente forando prima con una punta più piccola

Habe den Bohrer nicht oft benutzt und kann über die Haltbarkeit nichts sagen.Für mich hat der Bohrer sehr zufrieden seine Arbeit geleistet.

Broca de muy buena calidad.Viene presentada en un estuche de plástico azul, transparente por un lado, muy práctico para guardar la broca o incluso colgarla de forma individual.Compré la broca porque necesitaba esta medida en concreto para realizar una serie de orificios en metal, tanto aluminio como acero.Tras hacer un uso bastante intensivo de la broca, con varios orificios en acero y uno en aluminio, he de decir que el resultado ha sido muy bueno; el filo se ha conservado perfectamente (he de decir que en el caso de los orificios en acero, y dado el diámetro elevado de la broca, he lubricado de forma continua con 3en1 el orificio mientras lo realizaba).La broca viene muy bien afilada, y es muy duradera.El vástago reducido tiene un diametro de algo más de 12mm, a mi me ha servido para utilizarla en un taladro de batería normal.Recomiendo su compra

Personalmente y, aunque tengo bastantes herramientas y material en general, no contaba con una broca para metal de este diámetro, ya que la más grande que tenía para metal era de 12mm.Compré esta broca porque tuve que realizar un orificio de 16mm en una pieza de aluminio y decidí utilizar una broca de 14mm como intermedio entre los 12 y los 16.Tras algo más de uso, el orificio en aluminio que es un material bastante blando y posteriores usos en acero, debo de decir que la broca me ha sorprendido para bien, ya que por el precio que tiene presenta una calidad y resistencia más que aceptable. Tras los trabajos el filo permanece intacto y apenas tiene marcas de desgaste en ningun sitio.En todo momento lubriqué la zona del orificio para evitar sobrecalentamiento, pero aún así pensé que saldría peor parada la broca. La parte "útil" de la broca hasta el vástago mide unos 9cm.Tiene buen ángulo de corte y es muy duradera, recomiendo su compra 100%