Neiko Titanium Step Drill Bit – 1/4″ to 1-3/8″ in 1/8″ Increments, 10 Steps

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3 Responses to Neiko Titanium Step Drill Bit – 1/4″ to 1-3/8″ in 1/8″ Increments, 10 Steps

  1. N. Cody says:
    103 of 111 people found the following review helpful
    3.0 out of 5 stars
    Needs Coolant!!!, July 30, 2013
    By 
    N. Cody (San Francisco, CA USA) –
    (REAL NAME)
      

    Verified Purchase(What’s this?)
    This review is from: Neiko Titanium Step Drill Bit – 1/4″ to 1-3/8″ in 1/8″ Increments, 10 Steps (Misc.)
    I really wish this came with instructions. Without them I ruined my bit in 5 minutes. After ruining it I looked up how I should have used it. Ideally this should be used in a drill press with a constant flow of coolant. However, if you are cutting a keg (like I am) with a hand drill then you must only cut 15-20 seconds at a time, wait 60 seconds, wipe the old oil off and add more oil, repeat. Never let the bit get hotter then you can touch. Second never run the drill quickly, slow as you can. Fast apparently can heat the SS fast enough to harden it.
    The final note I found is never use a steel file or brush on stainless steel. If you do it will embed little microscopic bits of stainable steel in the stainless and will cause rust. De-burr with either a stainless steel file or sand paper.
    I know all this is stupid obvious to anyone who works with metal, but judging by the reviews most of the people buying this are brewers not metal smiths. Oh well $14 lesson learned, hopefully the next guy can learn it for free.

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  2. kevin says:
    24 of 24 people found the following review helpful
    5.0 out of 5 stars
    Perfect for Homebrewers, May 22, 2011
    By 
    kevin

    Verified Purchase(What’s this?)
    This review is from: Neiko Titanium Step Drill Bit – 1/4″ to 1-3/8″ in 1/8″ Increments, 10 Steps (Misc.)
    This drill bit did exactly what I hope it would do. I drilled a 7/8 hole through my stainless pot with ease. My ball valve fit perfectly.

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  3. Multiplier says:
    21 of 22 people found the following review helpful
    5.0 out of 5 stars
    It got the job done!, December 7, 2009
    By 
    Multiplier (SMV, CO USA) –

    Verified Purchase(What’s this?)
    This review is from: Neiko Titanium Step Drill Bit – 1/4″ to 1-3/8″ in 1/8″ Increments, 10 Steps (Misc.)
    I needed to drill a 1-3/8″ hole in a stainless steel kitchen sink (not sure of the thickness, but it was a heavier gauge than some of the less expensive sinks I’ve seen) for an instant hot water device. I had another step bit that wouldn’t touch it. This one did the job, albeit with some time and effort. I started with a 1/8″ bit and worked up to 3/8″ or 1/2″ (I forget which) before using the step bit. Then, I drilled one step at a time using liberal amounts of cutting oil, it cut slower as the hole got bigger which makes sense as it was working harder to remove more material. The key to the job was letting the sink and bit cool down between steps (cool water helped speed up the process and also kept the sink from warping). I had my wife drizzle oil on the bit/sink while I drilled – messy but effective. Bit seems to have survived just fine, still feels nice and sharp. As an aside, we love the instahot, too – it was worth the effort!

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