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HOLDFASTS IN 5 INCH BENCH TOP

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Forum topic by tigerwoodsman posted 08-15-2015 04:59 PM 680 views 0 times favorited 7 replies Add to Favorites Watch
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tigerwoodsman

9 posts in 564 days


08-15-2015 04:59 PM

I ORDERED GRAMERCY HOLDFASTS FOR MY 5 INCH BENCH TOP I’M BUILDING, WILL THE HOLDFASTS WORK OR DO I HAVE TO COUNTER BORE FROM UNDERNEATH? THE HOLES ARE YOUR TYPICAL 3/4 WHAT SIZE BIT FOR THE COUNTERBORE UNDERNEATH?

-- Just because you shot Jesse James doesn't make you Jesse James


7 replies so far

View TheFridge's profile

TheFridge

6330 posts in 1032 days


#1 posted 08-15-2015 05:18 PM

I’d say a 1/4” x 2” rabbeting with bearing for a router. Or a 7/8” auger bit if you go that route. I have a 2-1/2”-2-3/4” top and the work like a champ. Pretty sure they’re work in a 3” top.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

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tigerwoodsman

9 posts in 564 days


#2 posted 08-15-2015 08:46 PM

What about a 1 1/2 forstner or spade bit from underneath?’

-- Just because you shot Jesse James doesn't make you Jesse James

View RogerBean's profile

RogerBean

1604 posts in 2500 days


#3 posted 08-15-2015 09:03 PM

I’m using the Gramercy holdfasts in a 4 1/2” beech top and they work fine with no counterboring or other modification.
Roger

-- "Everybody makes mistakes. A craftsman always fixes them." (Monty Kennedy, "The Checkering and Carving of Gunstocks", 1952)

View Smitty_Cabinetshop's profile

Smitty_Cabinetshop

13935 posts in 2165 days


#4 posted 08-15-2015 10:23 PM

It’ll be tough to create a bigger hole than what’s in place with a forstner or spade.

Try them first, before modifying your bench top’s underside.

Usage over time will ream the holes a bit anyway, things will continue to improve.

-- Don't anthropomorphize your handplanes. They hate it when you do that. -- OldTools Archive --

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tigerwoodsman

9 posts in 564 days


#5 posted 08-15-2015 11:34 PM

Another thing what grite are you using to rough them up? What do you suggest using on underside if it doesn’t work

-- Just because you shot Jesse James doesn't make you Jesse James

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Smitty_Cabinetshop

13935 posts in 2165 days


#6 posted 08-16-2015 09:48 PM

I think I worked over my painted holdfasts with 60 grit or so, but it doesn’t take much.

If reaming is needed, try a round rasp first?

-- Don't anthropomorphize your handplanes. They hate it when you do that. -- OldTools Archive --

View CL810's profile

CL810

3552 posts in 2534 days


#7 posted 08-17-2015 12:09 AM

I have the Gramercy holdfasts. They work great in my 3.5” bench top but would not hold in my 4.5” legs. I used a step bit and enlarged the 3/4” holes to 1” on the back side. + 1 to roughing up the holdfast.

-- "The only limits to our realization of tomorrow will be our doubts of today." - FDR

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