Drill Bushings

Question 1

Processes

Answer 1

Drilling
Taping
Teaming
Counterbore/countersink
Spotfacing

Question 2

Busing id

Answer 2

P. - 20. - 16. - .1250
Bushing Outside. Length. Inside
Type Diameter Diameter

Question 3

Uses

Answer 3

Locate
Guide
Support

Question 4

Permanent bushings

Answer 4

Not reg changing applications. Can drive location hole bigger if changed reg

-press fit

Question 5

Renewable bushings

Answer 5

Slip - multiple operations

Fixed- single operation

Question 6

Permanent bushing

Answer 6

Press fit
Head press fit
Serrated press fit
Serrated grove
Diamond grove

Question 7

Two main parts of renewable bushing

Answer 7

Drill bushing and liner bushing

Question 8

Slip/fixed renewable

Answer 8

Combines both slip and fixed locking

Question 9

Gun drill

Answer 9

For deep drilling

Question 10

Lockscrews

Answer 10

Most common locking device for bushings

Question 11

Round end clamps

Answer 11

Heavy duty alternative to lock screw

Question 12

Bushing options

Answer 12

Chip breaker
Oil grooves
Oil hole
Directed coolant passage
Angled exit
Ground flats
Thin walled

Question 13

Bushing length

Answer 13

1 to 2 times tool diameter

Jig plate should be same

Question 14

Installing bushing

Answer 14

Use arbor press or draw bolt washer

Lubricate outside of bushing