drill

I have a set of 4 metric (I believe) bolts that have stripped the threads out of a diesel engine thermostat housing they were bolted into. The reason for the stripping was because the previous owner had used the wrong threaded replacement bolts which ruined the threads so it is not a mechanical...

Well, I converted my four jaw chuck to work on my three-bolt spindle with my drill press. Both chucks already fit tightly onto the spindle nose (correct term?) My options were: * drill three holes into the spindle * drill/tap three holes into the adapter plate * drill/tap two holes into the...

All Standard Sizes of Imperial & Metric Drills #80-#1, A-Z, 1/64"-2 ½", .80mm-50mm, in diametral order.

I am drilling a 0.3750" diameter hole 1.250" completely through a piece of T6 Aluminum. The notes I have for this state that the dimensions on this hole are critical. So I am planning on under drilling the hole at 23/64th (0.359375") diameter and then use a precision reamer to get it to...

Background: Construct a gear drive for a telescope. As accurate as it can be made with the tools at hand. The next step is to make and tap a 1 inch deep hole in the center of a 1 inch aluminum rod. The rod is about three inches long. The hole will be just over an inch deep and tapped to 1/4 by...

Hi guys, A 15" vintage Atlas 73 floor drill press fell onto my lap (ouch), and I was hoping to get help here in buying the correct size bearings. Below is a screenshot from the manual: Do I just Google "2.05 bearings," or do I need more info? I just bought my drill. It's sitting in my car. I...

Hi all, hope I'm in the right forum - this is barely machining, but I need a machinist's mindset for advice. I am the metalworker for a small custom furniture shop, and lately we are making a lot more designs that rely on bolt connections rather than welding. I am able to finish the...

This guy has an assortment of 6 and 10 packs of HSS stubby drills on Ebay , priced good. I bought a few packs i could use. I do not know the guy , i'm passing the info on to fellow HM members . Here's one ebay item number to search for him 142105086070 kramerkramer02

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I need a drill chuck that closes completely at the center. most chucks leave about 3/32 opening. I'm trying to chuck wire into it for straightening, using a hand drill. I have looked at using Collete's or some other technique, or maybe using a dremel but ideally i would have some kind of...