Blacksmiths Drill Bit Set 6Pcs
seem fine to me!
Bought these to increase some mounting hole diameters in another tool with a cast base. Slow speed with a little lubricant with the pillar drill and no problems at all. I have only drilled a couple of holes with the 15mm bit so far, but seems to be lasting fine.
24 Jun 2015
I am puzzled why a blacksmith would want to drill holes in plasticine. anything more challenging defeats these drills. They are advertised as being able to drill steel., this is just possible as long as you don't mind sharpening the drills every few seconds, cast iron is harder than the drills and wears away the drill faster than the job. save your money and buy a couple of real HSS drills if you really need to drill bigger holes. very disappointing, bit of a waste of steel.
10 Mar 2015
Poor quality bits
I tried to use these to drill 6mm mild steel plate. I got about half way through before the cutting edge burred out on the bit. Drilling was done at low speed using a lubricant and cooling agent. Needless to say I was not impressed and had to return them as defective/not fit for purpose. Screwfix to be fair took the return no quibble.
Bottom line - these are poor quality.
21 Aug 2014
This drill set is a good value set for getting over the problem of small chuck and larger hole required. I drilled out hole in solid steel block with no trouble, being quite rough on the drill bit with no problem.
One thing that would make this better and I would not object with the small raise in price is to provide some sort of case to keep them all together.
28 Mar 2014