What Grit Sandpaper Do You Typically Use On A 6" x 48" Belt Sander?

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Forum topic by BlankMan posted 12-06-2009 09:43 PM 1975 views 0 times favorited 10 replies Add to Favorites Watch
View BlankMan's profile


1490 posts in 3531 days

12-06-2009 09:43 PM

This is not a newbie question, I’d like to know what grit you find yourself using the most?

Back in Spring I picked up a Jet JSG-6 from the GM Janesville plant auction. It’s been sitting in the garage since then because I didn’t have benchtop space for it. Well I got the Jet enclosed stand for it Friday (that was a total fiasco, took 2 months to the day) so I’m cleaning it up and mounting it and soon will be using it. So I’m wondering what is the most popular grit that is used.

I tend to use a lot of 220 grit so I’m wondering if that would be a good choice. With my planer and jointer doing a good job at keeping the wood smooth, and also drum sander, I don’t use a lot of 80, 120, or even 150. In fact I have 120 and 220 for the drum sander and pretty much only use 220.

The belt is pretty easy to change so I’m thinking maybe have a few grits on hand, but which ones? The disc is not so easy to change and then reuse the disc over but I have discs on hand for my Delta 12” disc sander so for now I’ll use one of those.

-- -Curt, Milwaukee, WI

10 replies so far

View Shamus's profile


16 posts in 3295 days

#1 posted 12-06-2009 10:38 PM

I use 120 grit and that’s all I have ever used. Nothing but rough sanding. I find it to hard to control the piece I’m sanding with a belt to use it for anything else. I use 220 on the disk.

That said, and your right the paper is easy to change, I’d try a 120 and 220 for starters and see what your results are and what all you can use it for.

Just my 2¢

View LouJC's profile


59 posts in 3385 days

#2 posted 12-07-2009 02:20 AM

Curt : I use from 60 to 120 on my belt sander, all acording to how much material I have to remove, anything requiering finer than 120 and up to 220 I use my random orbit sander, anything above 220 I do by hand either with a block, a padded block or just the bare hand.
That works for me

-- Lou - Maine

View BlankMan's profile


1490 posts in 3531 days

#3 posted 12-07-2009 04:35 AM

Thanks all. I’m thinking I’ll start out with 120, 180, and 220 and maybe a 60 or 80 then. Not sure what all I’ll use the belt for yet. My staple has been the Delta 12” disc and I think I typically had 80 to 120 on it. I’m going to put a 220 disc on the Jet and keep the coarser grit on the Delta so between those two and the belts I should be set pretty good.

I happened to stop at HF this afternoon and noticed they have belts for like $2 and some change, anybody know if they’re any good? For that price they might be worth a try though.

-- -Curt, Milwaukee, WI

View Kindlingmaker's profile


2658 posts in 3704 days

#4 posted 12-07-2009 06:05 AM

BlankMan, I change belts a lot more than I do socks and it all depands on what I am sanding and at what stage the sanding is. It is very easy to change the belts so…
If you have an ol’ Griz drum sander that is a different story because it is a pain in the bottom to change the grit on… so I leave whatever grit is on it until it shreds.

-- Never board, always knotty, lots of growth rings

View Ken90712's profile


17592 posts in 3367 days

#5 posted 12-08-2009 05:54 PM

I use 120 on my 6×48 belt and 80 on the 10 inch disc almost always.

-- Ken, "Everyday above ground is a good day!"

View MrHudon's profile


114 posts in 3388 days

#6 posted 12-08-2009 07:48 PM

only 120 grit

-- Mark,

View Ger21's profile


1075 posts in 3309 days

#7 posted 12-08-2009 09:26 PM

120 on the belt and 60 or 80 on the disc.

-- Gerry,

View BlankMan's profile


1490 posts in 3531 days

#8 posted 12-08-2009 09:39 PM

I’m seeing a lot of 120’s, so maybe 60, 120 & 180 would be a good place to start. Or maybe just 60 and 120. I can always get more.

-- -Curt, Milwaukee, WI

View GaryK's profile


10262 posts in 4166 days

#9 posted 12-08-2009 09:43 PM

Since I use my belt sander for rough work I typically use 60 or 80 grit belts. When I take off a lot of material the rougher belts don’t get nearly as hot.

It depends on what you are using it for.

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View Roper's profile


1389 posts in 3891 days

#10 posted 12-08-2009 10:52 PM

120 belt, 60,80 disk.

-- Roper - Master of sawdust-

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