3-jaw strong scroll chuck plain back, 2-piece jaws
(front and back mounted)

Front and back mounted (SK-16 excluded). Easy to install
Self-centering chuck improve efficiency.
SK types chucks have wider utilization range; Top jaws can be changed quickly between hard jaws or soft jaws
hard jaws suitable for heavy cutting; soft jaws suitable for light and precision cutting. It is convenient to change between hard jaws and soft jaws.
Interchangeable utilization of internal and external hard jaws for widely clamping methods
SK self-centering scroll chuck feature economical and durable, suitable for mass production.
Gripping accuracy of 0.03mm (0.0012 inch) T.I.R..
The body is made of highly strength and durability MEEHANITE. It is suitably used for high speed revolution also durable 3 times more than regular material.

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UNIT : mm

SPEC Model	A	B	C	D	E	F	G	H	J	K	L	Allowable Handle Torque (kgf‧m)	Gripping Force (kgf)	Max. Speed (r.p.m.)	Weight (kg)	Moment Of Inertia I (kg‧m² )	Gripping Range
SPEC Model	A	B	C	D	E	F	Back / Front	H	J	K	L	Allowable Handle Torque (kgf‧m)	Gripping Force (kgf)	Max. Speed (r.p.m.)	Weight (kg)	Moment Of Inertia I (kg‧m² )	O.D. Range / I.D. Range
SK-4	112	58	80	95	32	4.8	— / 3-M8x65	47	19	31.6	8	4.5	1200	2500	3.8	-	Ø3-Ø95 / Ø34-Ø90
SK-6	167	67	130	147	45	5.5	3-M10 / 3-M10x70	72	26	40.2	10	9.0	2200	2000	9	0.03	Ø4-Ø160 / Ø55-Ø150
SK-7	192	76.5	155	172	58	5.5	3-M10 / 3-M10x80	81.2	28	42	11	11.0	2500	2000	13.8	0.06	Ø8-Ø180 / Ø62-Ø170
SK-8	200	76.5	160	176	58	5.5	3-M10 / 3-M10x80	82	28	42	11	11.0	2500	2000	15.5	0.07	Ø8-Ø190 / Ø68-Ø180
SK-9	232	84	190	210	70	6	3-M12 / 3-M12x90	90.9	32	51.2	12	15.0	3000	2000	22	0.16	Ø11-Ø220 / Ø70-Ø210
SK-10	273	87	230	250	89	8	3-M12 / 3-M12x90	100.5	35	56.7	12	19.5	4000	1800	29.7	0.26	Ø12-Ø260 / Ø80-Ø250
SK-12	310	96	260	285	105	7	3-M12 / 3-M12x110	114.5	40	56.8	14	21.0	4200	1800	43.5	0.58	Ø15-Ø300 / Ø90-Ø290
SK-16	405	122	345	375	160	8.7	— / 6-M14x130	148.6	50	76.1	15	25.0	4500	1500	98	1.72	Ø30-Ø380 / Ø110-Ø360