What drill bits are these??

[TurboGoKart]

I got some drill bits handed down to me from a passed relative. I got a few normal sets and a few random ones that I have no idea what they're for. Does anyone know what these are supposed to be used for??

 

http://i1317.photobucket.com/albums/t639/turbogokart/C100B5CF-9666-4F2B-B2EA-8DD652998A71_zpsrflon6gl.jpg

 

http://i1317.photobucket.com/albums/t639/turbogokart/C4D00433-05DA-490D-83DE-D0FD561EB499_zpsd5ihgvxf.jpg

 

http://i1317.photobucket.com/albums/t639/turbogokart/679BB3F1-27EE-488D-B3BE-12955F3CAA05_zpsv325rjt3.jpg

[Benner]

Looks like multiple concrete/masonry bits, a step bit and a honing bit.

 

However i could be mistaken.

[dakotart]

Here's my opinion:

Far left looks like a carbide grinder bit

2nd left looks like concrete bit

middle is a "reamer" bit

2nd from right I'm not sure

far right is concrete

[TurboGoKart]

What is a case where you would need a threaded concrete bit?

[Mojoe]

Here's my opinion:

middle is a "reamer" bit

 

That's the only one I recognize. My dad use to work for a machine shop that manufactured these. His just was to put the finishing touches on them after sharpening them with a diamond wheel.

[Green Bastard]

What is a case where you would need a threaded concrete bit?

 

Looks like it is for concrete to me too, the threads are probably there to pull the dust and debris to the surface.

[Troy2285]

The far right bit is for busting thou re-bar in concrete, a normal concrete bit wont cut steel

[Cordell]

Here's my opinion:

Far left looks like a carbide grinder bit

2nd left looks like concrete bit

middle is a "reamer" bit

2nd from right I'm not sure

far right is concrete

 

Going to agree with this, though I'm not sure I'd call the first one a carbide bit, but looks to be for grinding.

[TurboGoKart]

What's the reamer bit for? Metal or wood?

[dakotart]

Going to agree with this, though I'm not sure I'd call the first one a carbide bit, but looks to be for grinding.

 

That's what I was thinking. Looks like a bit I use with my air grinder.

[Jackson1647545504]

dentistry

[Green Bastard]

The far right bit is for busting thou re-bar in concrete, a normal concrete bit wont cut steel

 

The concrete bits we use here at work (that look nothing like those) will go through rebar (though the bits are usually 3/4" or smaller and it is a pita).

[wnaplay1647545503]

Second bit looks like a hss or high speed steel bit. 5Th one is a carbide concrete bit.

[Orion]

Could be off your moms dildo?

[TurboGoKart]

Oh yeah that's probably it! :jerkit:

[Orion]

Oh yeah that's probably it! :jerkit:

 

 

:lolguy:

 

Sorry bro, couldn't help myself.

[Not Brian]

that fourth one is making me horny

[Troy2285]

3/4" Dia x 12" Long 1/2" Shank Rebar Cutter

RELTON CORP.

 

Wholesale: $81.99 / each Sign in to view customer-specific pricing.

 

 

Fastenal Part No. (SKU): 0282051 Manufacturer Part No.: RB-12 UNSPSC : 27111543 Manufacturer: RELTON CORP. Category: Tools & Equipment > Power Tool Accessories > Hole Making Accessories > Rebar Cutter Bits

[KillJoy]

#4, when it is spun, do those things flail out? Some type of hone?

 

KillJoy

[TurboGoKart]

Don't know for sure. I'll throw it on the drill and find out tonight. That was my thought too; some kind of hone.