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Forum topic by jman75 posted 07-13-2014 11:49 PM 925 views 0 times favorited 10 replies Add to Favorites Watch
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89 posts in 1377 days

07-13-2014 11:49 PM

Topic tags/keywords: question

Anyone know what kind of bit this is? Acquired it from a friend and tried looking up the numbers and company but I got nothing!

10 replies so far

View Gene Howe's profile (online now)

Gene Howe

8105 posts in 2851 days

#1 posted 07-13-2014 11:56 PM

Looks like a “Star Bit” for drilling concrete. Impact, not rotary action.
Well used.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View jman75's profile


89 posts in 1377 days

#2 posted 07-14-2014 12:05 AM

I know the person who had it used a metal lathe so I thought it was somewhere along those lines

View bigblockyeti's profile


3581 posts in 1143 days

#3 posted 07-14-2014 12:11 AM

It is a metal ream, designed to fit in a morse taper socket. It won’t last too long in a concrete application as its intent is to provide a very precise diameter in a blind or through hole.

View jonah's profile


687 posts in 2721 days

#4 posted 07-14-2014 12:26 AM

I was going to say some kind of ream, but yeti beat me to it.

View Pezking7p's profile


3097 posts in 1074 days

#5 posted 07-14-2014 12:28 AM


-- -Dan

View diverlloyd's profile


1264 posts in 1280 days

#6 posted 07-14-2014 12:50 AM

It’s a reamer the size should be on the shank. It’s for making a hole an exact size after it’s been bored. Using one on a large hand held drill is not a fun job. But the steel they are made makes good knives.

View ErikF's profile


500 posts in 1666 days

#7 posted 07-14-2014 04:23 AM

What size is it? I do a fair amount of turning on the lathe and could always use one more reamer.

-- Power to the people.

View jman75's profile


89 posts in 1377 days

#8 posted 07-14-2014 06:00 AM

It is a 3/8…but I have a few more

View Slemi's profile


102 posts in 964 days

#9 posted 07-14-2014 02:33 PM

This is actually reamer for making very exact holes in metal. I don’t think it is sharp enough for boring/reaming wood.

View Don Broussard's profile

Don Broussard

2989 posts in 1674 days

#10 posted 07-17-2014 07:27 PM

I’m sure the previous replies have already nailed what this piece is, but I noticed during disassembly of my drill press, that the star-shaped end showed up. I think it’s the gear that turns the quill shaft.

-- People say I hammer like lightning. It's not that I'm fast -- it's that I never hit the same place twice!

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