What Size Drill Bit For 3 8 Bolt

3 8 hole use a 3 8 drill bit with that said start with the next size or 2 down to see what they do check the fit etc maybe you will be good with that maybe you will need a little wiggle for wtvr your doing.

Print this page. Most drill charts recommend a 5 16 drill for a 3 8 16 bolt. Yes use the 3 8 bit the bolt should go three the hole. In case you need to drill a hole and thread it for a screw or bolt.

Sheet metal screw to drill bit size table screw size drill bit size 2 3 32in 4 1 8in 6 5 32in 8 3 16in 10 13 64in 12 1 4in 1 4in 9 32in 5 16in. Some general rules of thumb are to not use a bit exactly the size of the hole when working with wood make it about 1 64 smaller. Drilling larger holes will result in weaker threads increasing the possibility of stripping them. If by chance it won t use the 3 8 but or a file to bore the hole out a little.

1 4 3 8 1 2 9 16 5 8 11 16 3 4 7 8 1 1 1 8 1 1 4 1 3 8 and 1 1 2 and sizes for step drill bits. Cutting holes that are smaller will leave more material for the tap to cut out risking tap breakage. I think of anchors i think of a tight fitting solid gripping thing solid enough to anchor a ship to the sea floor. People would need a drill size chart and tap size chart to determine the proper tap drill for a certain thread size or proper tap for an existing hole.

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Range from 1 8 to 1 3 8. I also have included the chart for drill bit size per tap size. Us tap and drill bit size table. Fractional and metric sizes per.

Drill bits also called twist drills are available with straight or tapered shanks though the most common drill bits will have straight shanks. Tap fractional drill bit number drill bit letter drill bit. It provides a guide for the consumer to follow that is meant to make the task easier. Here would be the standard drill bit sizes for spade bits 13 pieces.