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Irwin Speedbor Max Speed Bits?

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Forum topic by 12strings posted 443 days ago 911 views 0 times favorited 1 reply Add to Favorites Watch
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12strings

374 posts in 989 days


443 days ago

What do you think of these bits…especially as compared to an auger bit?

I bought one for a specific purpose because my spade bit wasn’t cutting it, and I liked it…but how do they compare to auger bits?

-- I'm strictly hand-tool only...unless the power tool is faster and easier!


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crank49

3343 posts in 1575 days


#1 posted 443 days ago

I have a few of these and to me they are pretty much like all “self feed” bits.
For making holes, they get the job done but you have to be careful they don’t bind up.
And you have to be sure you can reverse the drill to back them out of a non-through hole.
My drill press does not have reverse, for instance.
They will work in a hand brace type drill, reverse is no problem there.
A ship auger type bit is better for long straight holes.
A spade bit will make a fast, rough hole for less money.
A brad point or forstner bit will make a much cleaner hole and can be pulled out while drilling.

I have considered grinding the threaded tip into a smooth point to see how that might work for a drill press. Should be somewhere between a spade and a forstner; but I haven’t done it yet.

-- Michael :-{| “If you tell a big enough lie and tell it frequently enough, it will be believed.” ― A H

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