5/16″ STUB DRILL BIT
$4.10
The 5/16″ bit is the common size for threading a 3/8″ 16 tpi hole. It has a 1 3/4″ flute length and the total length is 3 1/16″. The standard wood bit is longer and tends to “wander” if it hits a tight wood grain.
You may also like to buy the Bottoming Tap which cuts threads to the flat bottom. This is recommended for the hard exotic wood.
There may be some wood or especially acrylic and resins that it might be easier to use the threaded inserts because they do not hold threads well and to help eliminate tear out.
These drill bits are made in America
Additional information
| Weight | 2 oz |
|---|
Reviews (2)
2 reviews for 5/16″ STUB DRILL BIT
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Dave Brandt –
The stubby bit results in virtually no deflection of the bit when drilling the hole in a bottle stopper. Accordingly, the result is a well centered hole into which to mount the blank to the bottle stopper mandrel.
Anonymous –
I am pleased with the drill bit, it is just what I was looking for. The rapid delivery was very much appreciated, Ruth said 2 to 3 days and I thought, “yeah right, I’ll see it in a week or so.” Two days later it was in my mail box. Thank you. Great system.