I have a bench drill press 1/2" chuck with a sheared part. It is the part with a square hole that allows the square driveshaft to move up and down. I cannot find a replacement part, no one wants to weld it (stainless steel), and no one around here can fabricate it. Anyone know what I can do?
Many thanks for any suggestions.
PS - Do you think I could have a piece of aluminum turned and drill my own square hole?
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Re: ProTech Drill Press
Sounds like you already have it figured out. Drill a round hole first then use a small square file to make the correct sized square. Depending on what the sheared piece looked like, you can find some square stock at the hardware store.
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Woodstock D3455 Drill Chuck, 5/8-Inch by JT33 - Amazon.ca
This item: Woodstock D3455 Drill Chuck, 5/8-Inch by JT33 CDN$ 47.71. In Stock. Ships from and sold by Amazon.ca. FREE Shipping. ... (Canadian Tire) Drill Press.
5/8 Drill Chuck ' eBay
Suitable for drill presses or lathes spindle accepts R8 shank. Chuck key and R8-JT33 arbor are also included in the package. Special quenching treated ...
look inside the center of the chuck... if the is a bold inside, remove it. then place the short side of a 3/8" allen key into the chuck and tighten the chuck... then smack the allen key from the side with a hammer the same direction as forward rotation...
the drill press shaft has a taper in the end and a slot in the side The chuck you will use will have a taper in the back and the adaptor will be tapered to fit in the shaft. The slot is to put in a tapered drift to remove the chuck assembly so that larger drills with tapered shanks can be used. Most twist drills stop at 1/2 inch but reduced shank drills are available with 1/2 ''shank but a bit size up to say 3/4'' After that you will need taper shank drills.. If the drill shaft has a hole from top to bottom you can use special router bits that allow for ma threaded rod to hold them in during milling otherwise the chuck will vibrate and come loose and fall out. It is essential to select the right speed for the drill size being used and I have found that by using combination vices that allow the job to be moved in - out and side ways the jobs you can do are limited by your imagination
When you buy a replacement chuck it will have detailed instructions- at least Jacob's brand chucks do. Basically there is a retaining screw inside the chuck that needs to come out first- it may be left-hand threads . Then you put the short end of a 1/4" or larger allen wrench in the chuck and close it tightly. Set the drill on a bench with the chuck off of the bench and strike the allen wrench with a mallet in a counterclockwise direction. Do this several times, then you'll be able to spin the chuck off by hand. Reverse the process to install the new chuck.
If this is a new tool I would take it back and get it replaced. The only other way to eliminate this problem is to determine if it is the spindle or the chuck and replace the defective unit. Warranty works better.
You compare the following features: Horsepower (HP) is the maximum power produced by the motor. Higher horsepower allows you to bore larger holes through tougher material. Drill presses are available with motors from 1/4 to 1 HP. Size/center drilling capacity is determined by the distance from the center of the chuck to the column. Since the press can bore a hole in a circle with a diameter two times the distance from the center of the chuck to the column, the size is listed as twice the distance from the column to the center of the chuck. A 16" drill press can drill a hole up to 8" from the edge of a straight board or at the center of a 16" diameter circle. Variable speeds allow you to drill different diameter holes through different materials without damaging the material or drill bits. Drill presses are available with five to twelve speed settings. The more speed settings, the more versatile the drill press. The table on most drill presses can be raised and lowered along the entire length of the column. It can also swivel 360° around the column for boring oddly shaped pieces. Better presses have large, tilting tables with fences. Quill travel determines the depth to which the press can bore holes. Greater quill travel allows you to bore deeper holes. Depth-stops control the depth to which the quill descends and limit the depth of the hole. Depth-stops are good for repetitive boring and dowel holes. The more precise your depth-stops, the more accurate your boring operations.