A bit for enlarging the upper part of a hole.
Sinònims
Examples for "countersink"
Examples for "countersink"
1Button head bolts are often used on thin holds that have no countersink.
2Worn somewhat into the soil, this road served as a countersink and strengthened the position.
3The valves, C, and their seats, B, bored with a countersink bit, are plainly shown.
4Maximum stress was found on the lateral border of the number 5 countersink of the plate.
5Drill and countersink two smaller holes for 2-in.
1The holes can be counterbored for the heads and then plugged.
2To make the matter worse, quite a number of the wheels were found to have been counterbored about ½ in.
3Today I counterbored the four holes in the fenders that will have 3.5 machine screws inserted to act as axles for the wheels.
1The valves, C, and their seats, B, bored with a countersink bit, are plainly shown.