Harbor Freight Tools 93212 Threading Gears, Thread Size Gear Settings, Bevel Cutting

Bevel Cutting

Figure 30

4.After adjusting the angle of the compound rest, you can make bevel cuts.

Threading Gears

By changing the gear set-up it is possible to cut any thread size. The factory set-up for Mini Lathe gears is as follows:

Motor end view of Lathe with

Gear Drive Cover (53) removed:

A

B

C AA

D B

C

B C

D

D

Positions A and C= 20T

Positions B & D= 80T

To change the thread size, use the gear box settings shown on the table that follows.

REV 10b

Thread Size Gear Settings

Threads		Gear Box Stud
Per Inch	A	B			C	D
12	40					30
13	40	65		60		30
14	40					35
16	40					40
18	40					45
19	40	50		60		57
20	40					50
22	40					55
24	40					60
26	40					65
28	20					35
32	20					40
36	20					45
38	20	50		60		57
40	20					50
44	20					55
48	20					60
52	20					65
	A
			A
	B
			B
	D
			D

Example 1: To cut 12 threads per inch (see illustration above), use 40T in position A, 30T in position D, and put any other gear is position B to connect A and D.

A	A
	B
BC	C
	D
D

Example 2: To cut 38 threads per inch (see illustration above), use 20T in position A, 57T in position D, 50T in position B, and 60T in position C.

SKU 93212 For technical questions, please call 1-800-444-3353. Page 23