How wide will the clamps on this thing open? Specifically, I wonder if it will attach to a 3 1/4 inch diameter post on a drill press? Thanks.
1284183
I doubt it would open that far and if it did the grip would be that good. The other factor is the size of the bulb. The larger the bulb, like a floodlight, the less likely it is that the grips will stay in place.
1284184
I just tried it and measured, squeezing a tight as I could it seemed to max out right at 3 1/4".You might get it to work but it could be hard to get it to grip if the post is round as i assume that it is.
328715
I will check for you this afternoon. Well I checked with my smallest drill bit which I measured with my calipers at 1.5 mm and it grips it nice and tight. Hope this helps.
1474371
Hello Tim,The width of the clamp is just over 2.5" wide. The clamp bolt and knob are 4.5" tall, so you'll need that much vertical room underneath for it to fit.Thank you for your question and please let me know if you have any further questions.Sincerely,Taylor W.VIVO
2232620
I just now did an actual measurement of clamp surface to adjustment screw pad,(fully open) and I have 1 and 13/16 inches of opening; this is the adjustable opening maximum. The depth of the clamp, from the bottom of the U shape to the edge is 2 and 5/8 inches of opening. You can add another 1/8" to this depth as the adjuster pad extends beyond the clamp body. You can't trim back the clamp body to make it larger, (like with a hacksaw) as the body is not solid, but ribbed for extra strength. I may be wrong, but I think I saw these at Dick's Sporting goods, actually in the store. You could check online and call the store to see if they have it, and measure it yourself. ( I see that another answer gave different measurements...) These puppies are nice and sturdy; I use mine for canoe outriggers with two lobster floats attached to a tee. Good luck.
1060025
The outside diameter of the post is 2-3/8". This does not include the tightening screw.
900646
The width of the base piece is 3 5/8". The maximum width that that clamp can open is 4". I hope I answered your question appropriately. Please let me know if you have any further questions. Thank you, Taylor W. VIVO
1498634
The clamp opening is approximately 2 1/4" wide when fully engaged. We have ours clamped to a bunk bed as a reading light. The clamp is slightly weak so as an added measure it is zip tied as well. Hope this is helpful.
2260379
I used it for an older bench top skil hd drill press,fit fine. Take a 5/16 drill bit and put it in the pilot hole if it fits snug this should work
234736
I checked the diameter of both the units I bought and it looks as if 1" is the max diameter of the post clamp.This would not fit my seat post but the rear frame wheel support. Hope this helps... Please note that the most recent one purchased only had the large size clamp and came with two dead batteries. Perhaps this was a customer return.
562091
I just measured a lever that I had loose. I tightened the screw all the way down to stop. The smallest the clamp will pull down is about .850-.860" which is about 21.84mm. On the wide side you can stretch it open to about .890" which is about 22.6mm. At those extreme dimensions the hole is no longer round. It was kinda sketchy going that tight, you might induce unwanted stress into the aluminum clamp that could fracture later when in use. It might work ok on an alloy bar within those dimensions but might pinch and crack carbon.
1590303
Note the four long slots, two on each side of the apron. If you have tee slots radiating from the centre of the drill press table, then you will be able to bolt it down. In my own setups I use c-clamps to hold the vise or parts to the table. I use the Irwin bar clamps. They are very quick to set up and can be handled with one hand while holding the work with the other. They are also low profile on the fixed jay side so if you open the clamp wide enough to fit over the table lip and work, then you can lift the clamp screw into place undee\r the table and press the slide release. The clam head will drop into place by gravity, then tighten with the free hand. Hope that helps.
2156964
Yes, it's designed for 3/4" holes. In a 3/4" hole it's a little loose so if you have a drill bit just a tiny bit smaller (probably metric), try that. It's much more stable. BTW, the things work beautifully if the piece you're holding has flat edges. If they're rounded at all, the work piece will jump all over the place.
677095
The clamp opens to about 1.5 " at it's widest (<). The two sides of the clamp are parallel at 1 inch. So it should attach to something that is 1" or less.
2125917
I had my clamp-on deck hook installed at 3 1/2 inches. It is an adjustable clamp so it will go even wider than that. It is sturdy and I highly recommend it.
1497304
The holes are 1 5/8 inch on center side to side. The holes are 0.2 inches in diameter. The clamp is 2.2 inches wide. I added a 3x3 inch piece of angle iron to the pushing end and it worked fine clamping 4x4's for drilling 1/2 inch holes
1767350
I believe it opens about 3" so if your magnetic attachments and whatever it is you are trying to clamp is less than that I suppose so.
1474370
The clamp is 2 1/2" wide and about 2 3/4" front to back so should fit through a 3" round hole and definitely a 3" square hole.