Unibit drill bit for box mods - perfect for modding

[Bill77094]

Many of you already know about the unibit drill bit. But for those of you that don't, a unibit is used to drill holes of varying sizes through plastic and sheet metal. They are incredibly strong and are built to last a pretty long time. Leaves a clean, finished hole, much better than than reaming one out.

They are also costly, at around $35.00 for a mid sized bit capable of drilling a hole from 3/16", stepping up to 7/8". But it will be a pretty useful bit in your tool box so may want to consider picking one up. They are usually available at any home improvement store.

Hope it helps!

 

[NatureBoy]

Step bits are great, though $35 is very expensive for 1 bit.

Here's a 3 piece from Harbor Freight for $10:
- Harbor Freight Tools - Quality Tools at the Lowest Prices

 

[Wireguy]

I've got a stack of them but I don't think of them when I want precision. I think of them as more of a rough out tool unless one of the sizes just happens to match a job I'm doing.

 

[KarrMcDebt]

LOL
Much more precision that the exacto knife that I reamed out my last box mod with.

Now if I could just find a rectangular hole punch to make the switch slots in the battery box.

 

[DUFFMAN]

I've used this step bit to drill the holes in my battery box mods and it works perfectly!! Whenever I used a regular drill bit it would catch the box and tear a nasty looking hole in it!!

 

[beast775]

ive gotta get one of those!i have found that old worn out drill bits work great on plastic.

 

[Shortstuff116]

Those are exactly what I have been using on my mods and I also have a tapered round file (fine tooth) that I use. I drill out to just under the right size then carefully put the round file into the hole and turn it which slowly files the hole open until I reach the exact size I want. I end up with a perfectly clean round hole every time.

 

[ThePuck]

Go to Harbour Freight and get a hole reamer in the plumbing section. The hole reamer starts out at like 1/8 of an inch and increases in size to about 3/4 of an inch. With this you just drill a 1/8 inch hole. Put the reamer in the hole and twist it until you get the exact hole size you want. It's a hand tool, not made for a drill.

The hole reamer is like 5 to 8 bucks, something like that. It will increase the size of any hole you drill in plastic or metal.

That's what I use and it works perfectly. I've been using one of these since I had electronics class back in school (25 years ago) for building projects. It was one of the required tools and I still use one to this day.

I'm not saying the step bit is bad but the hole reamer tool does a great job for me and is a lot cheaper.

 

[SurvivorMcGyver]

Go to Harbour Freight and get a hole reamer in the plumbing section. The hole reamer starts out at like 1/8 of an inch and increases in size to about 3/4 of an inch. With this you just drill a 1/8 inch hole. Put the reamer in the hole and twist it until you get the exact hole size you want. It's a hand tool, not made for a drill.

The hole reamer is like 5 to 8 bucks, something like that. It will increase the size of any hole you drill in plastic or metal.

That's what I use and it works perfectly. I've been using one of these since I had electronics class back in school (25 years ago) for building projects. It was one of the required tools and I still use one to this day.

I'm not saying the step bit is bad but the hole reamer tool does a great job for me and is a lot cheaper.

Yup, Best tools I've ever had for "just the right size hole" -- the unibit coupled with General tools T handled reamer 1/8" to 3/8" Tapered T-Handle Reamer for Plumbing & Woodworking - General Tools & Instruments

 

[nugod777]

I had to shred 3 battery boxes before buying the uni bit. Works great!

 

[oatt]

Thank for the info.

I think, I have to buy one..
Drilling the battery box is hard for me.

 

[ejoker]

i've never had any problems drilling the box ...