Turning Spindle Nose [in][mm]

Short Taper

Diagram	Type	Dimension
Diagram	Type	A-1	A-2*	A-3***	A-4	A-12	A-15
Has tapped holes on both the inner bolt circle and outer bolt circle.	A1-5	5 1⁄4	3.2505	.5625	2 1⁄16	1 7⁄32	7⁄16-14
	A1-6	6 1⁄2	4.1880	.625	2 5⁄8	1 5⁄8	1⁄2-13
	A1-8	8 1⁄4	5.50075	.6875	3 3⁄8	2 3⁄16	5⁄8-11
	A1-11	11	7.75075	.750	4 5⁄8	3 1⁄4	3⁄4-10
	A1-15	15	11.251**	.8125	6 1⁄2	4 7⁄8	7⁄8-9
	A1-20	20 1⁄2	16.251**	.875	9 1⁄8	7 1⁄4	1-8
	Tolerance +.0005/-.000 Tolerance +.001/-.000 **Tolerance +.000/-.001
Has tapped holes on the outer bolt circle, but has no hole on inner bolt circle.	A2-5	5 1⁄4	3.2505	.5625	2 1⁄16	1 7⁄32	7⁄16-14
	A2-6	6 1⁄2	4.1880	.625	2 5⁄8	1 5⁄8	1⁄2-13
	A2-8	8 1⁄4	5.50075	.6875	3 3⁄8	2 3⁄16	5⁄8-11
	A2-11	11	7.75075	.750	4 5⁄8	3 1⁄4	3⁄4-10
	A2-15	15	11.251**	.8125	6 1⁄2	4 7⁄8	7⁄8-9
	A2-20	20 1⁄2	16.251**	.875	9 1⁄8	7 1⁄4	1-8
	Tolerance +.0005/-.000 Tolerance +.001/-.000 **Tolerance +.000/-.001
Has drilled holes on the outer bolt circles, and has tapped holes on inner bolt circle.	B1-5	5 1⁄4	3.2505	.5625	2 1⁄16	1 7⁄32	7⁄16-14
	B1-6	6 1⁄2	4.1880	.625	2 5⁄8	1 5⁄8	1⁄2-13
	B1-8	8 1⁄4	5.50075	.6875	3 3⁄8	2 3⁄16	5⁄8-11
	B1-11	11	7.75075	.750	4 5⁄8	3 1⁄4	3⁄4-10
	B1-15	15	11.251**	.8125	6 1⁄2	4 7⁄8	7⁄8-9
	B1-20	20 1⁄2	16.251**	.875	9 1⁄8	7 1⁄4	1-8
	Tolerance +.0005/-.000 Tolerance +.001/-.000 **Tolerance +.000/-.001
Has drilled holes on the outer bolt circles, but has no holes on inner bolt circle.	B2-5	5 1⁄4	3.2505	.5625	2 1⁄16	1 7⁄32	7⁄16-14
	B3-6	6 1⁄2	4.1880	.625	2 5⁄8	1 5⁄8	1⁄2-13
	B4-8	8 1⁄4	5.50075	.6875	3 3⁄8	2 3⁄16	5⁄8-11
	B2-11	11	7.75075	.750	4 5⁄8	3 1⁄4	3⁄4-10
	B2-15	15	11.251**	.8125	6 1⁄2	4 7⁄8	7⁄8-9
	B2-20	20 1⁄2	16.251**	.875	9 1⁄8	7 1⁄4	1-8
	Tolerance +.0005/-.000 Tolerance +.001/-.000 **Tolerance +.000/-.001

Cam Lock

Camlock pins are made with a D shape cutout on its body. They are used to mount a chuck to a lathe spindle.

D1-3 to D1-4 chucks and adapter plates have 3 camlock pins.
D1-5 to D1-15 chucks and adapter plates have 6 camlock pins.

Diagram	Type	Dimension
Diagram	Type	A-1	A-2*	A-3	A-4	A-19
	D1-3	3 5⁄8	2.1250**	7⁄16	1 25⁄64	.594
	D1-4	4 5⁄8	2.5005	7⁄16	1 5⁄8	.656
	D1-5	5 3⁄4	3.2505	1⁄2	2 1⁄16	.781
	D1-6	7 1⁄4	4.1880	9⁄16	2 5⁄8	.906
	D1-8	8 7⁄8	5.50075	5⁄8	3 3⁄8	1.031
	D1-11	11 3⁄4	7.75075	11⁄16	4 5⁄8	1.218
	D1-15
	D1-20
	Tolerance +.0005/-.000 *Tolerance +.00025/-.000

Long Taper

Diagram	Type	Dimension
Diagram	Type	A-2*	A-3	A-28	A-29
	L00	2 3⁄4	2	3 3⁄4	6TPI
	L0	3 1⁄4	2 3⁄8	4 1⁄2	6TPI
	L1	4 1⁄8	2 7⁄8	6	6TPI
	L2	5 1⁄4	3 3⁄8	7 3⁄4	5TPI
	L3	6 1⁄2	3 7⁄8	10 3⁄8	4TPI
	*Tolerance +.002/-.000

Threaded

Diagram	Type	Dimension
Diagram	Type	A	B	C	D	E	F
	1 1/2-8	1 1/2-8
	1 1/4-8	1 1/4-8
	2 3/8-6	1 1/4-8
	M20	M20	21	30	6.3	10	20
	M24	M24	25	36	8	12	24
	M33	M33	34	50	9	14	30
	M39	M39	40	56	10	16	35
	M45	M45	46	67	11	18	40
	M52	M52	55	80	12	20	45
	M60	M60	62	90	14	22	50
	M76	M76x6	78	112	16	30	63
	M105	M105x6	106	150	20	40	80

Flat

Diagram	Type	Dimension
Diagram	Type	A
	70	70
	80	80
	100	100
	110	110
	120	120
	140	140
	170	170
	220	220
	300	300
	380	380
	520	520
	720	720
	1020	1020