Bosch TI2136IM 9/64 in. Impact Tough™ Titanium Nitride Coated Drill Bit

I had to drill through some hardened steel and wasn’t very confident. This bit went through it easily and is still sharp. I highly recommend.

Gifted 2 of these-kept the 3rd for myself !

This is a replacement for a bit that I loaned that never came back. It is identical in length and appearance to the DeWalt bit that it replaces.

My below average is partly my mistake. I believed the advertising. These bits are titanium coated. The coating quickly wears off when cutting steel. I was drilling holes in knife blanks. I needed solid carbide drill bits, but didn't realize the difference. I made the mistake of reading Amazon reviews. I realize some people dramatically represent the quality of the product. I could get 3-4 holes out of each bit. Then I found out Carbide bits is what I needed. Much more expensive. But worth it.

So I have a drill bit kit that I've had for years made by Hitachi. It has drill bits ranging from 1/16in up to 1/4in. Over time I've broken several bits which I have tried to replace with OEM parts when available. When I wasn't able to find a Hitachi brand 1/4in, I opted for this Bosch 1/4-Inch Impact Tough Titanium Drill Bit for about $5 shipped to my door. The other day I needed to drill 4 holes 5/8in in diameter into my welding table which is made of 1/2in thick plate steel. I wanted to drill pilot holes with something smaller than the 5/8 so I grabbed this new Bosch 1/4in drill bit. I thought surely at the first pull of the trigger on my impact driver I would strip out this 1/4in drill bit from its hex shank. Let me tell you - I drilled all four pilot holes with this one 1/4in drill bit through 1/2in thick plate steel with no problems whatsoever. Sure I went slow .. 300-400 rpm maybe? And I stopped every couple minute or two to brush away the chips and give a squirt of oil to cool and lubricate. And when I was finished, I had four nice clean holes and the drill bit looked good as new. That just never happens to me! I highly recommend the Bosch TI2143IM 1/4-Inch Impact Tough Titanium Drill Bit. I'm going to buy at least one of each size to replenish all of the drill bits in my Hitachi kit. Good day to all!

Easy drilling holes in pine lumber.Stays sharpened a long time.

This is about half the length of the drill bit I was replacing. My fault for not paying more attention to details.

Good for most jobs, but a little short.

The smallest bit broke immediately - when attempting to drill steel. I wasn't heavy handed.The next smallest bit didn't break but it barely made a mark on the steel. Tried the same bit in wood and it went through.If you are looking for wood bits then these are probably ok. For metal - don't bother (even though they claim to be able to on the pack)

Great bits for the impact driver.

Se oxidan rapidamente. Despues de 2-3 veces de uso se les va el filo, son una basura y una ya se rompió taladrando. Se quebró taladrando en una cerradura, no aguantó el impacto, así no mas. Nunca me había pasado esto en los ultimos 30 años. Me sorprendió la mala calidad de estas brocas BOSCH. Y es que ya no son hechas en Germany. Mala pero ultima inversión hacha con la casa bosch. Hoy tuve que quitar unos tornillos oxidados en una coladero, pero no pude porque ya no tienen filo. Tuve que agarrar unas viejas que compré hace 7 años y con esas rapido se fueron los tornillos. Que decepción!!Hätte nie degacht das bosch soweit sinken konnte mit der Qualität.

Las brocas son resistentes y de buena calidad, creo que el fabricante para no subir el precio demasiado, omitió venderlas con estuche y parece que es la única linea de herramientas que se vende así, los demás productos se proporcionan con estuche que habla muy bien del cuidado que tiene el fabricante de dar una presentación acorde con la marca pero para estas brocas no le importo, a pesar de que se encuentran en la gama alta de precios, algunos productos mas baratos se venden con un estuche de buena calidad como son las brocas para madera, en mi caso como hice el pedido para completar algunos faltantes no importo mucho

Las brocas Bosch no me han fallado en cuanto a calidad, obviamente que hay que usar cualquier broca con su respectivo cuidado, yo la compré para perforar metal y machuelear posteriormente, la medida quedó perfecta para machuelear sin ningún problema, en el destornillador de impacto sirve muy bien, aunque hay que tener cuidado con las revoluciones que dice que soporta ya que si te excedes, la broca se calienta demasiado y eso la va a terminar dañando.