Dolphin - Tools & Toolings

ER COllets

DOLPHIN ER Collets are made of High Grade Spring Steel, heat treated to provide enhanced clamping force and accuracy. DOLPHIN ER Collets can be used for Drilling, Milling Boring, Grinding and Tapping operations.

Model	dl 17	D	D1	D2	L	L1	L2	L3	Collapsible capacity
ER8	1.0-5.0	8	8.5	6.5	13.5	2.7	1.5	1.5	0.5
ER11	1.0-7.0	11	11.5	9.5	18.0	3.8	2.5	2.0	0.5
ER16	1.0-2.5 2.5-10.0	16 16	17 17	13.8 13.8	27.5 27.5	6.26 6.26	4.0 4.0	2.7 2.7	0.5
ER20	1.0-13.0	20	21	17.4	31.5	6.36	4.8	2.8	1.0
ER25	1.0-16.0	25	26	22.0	34.0	6.66	5.0	3.1	1.0
ER32	1.0-25.0	32	33	29.2	40.0	7.16	5.5	3.6	1.0
ER40	2.0-32.0	25	26	22.0	34.0	6.66	5.0	3.1	1.0
ER50	10.00-40.00	20	21	17.4	31.5	6.36	4.8	2.8	1.0

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ERG Tap Collets

DOLPHIN ERG Tap Collets are made of High Grade Spring Steel, heat treated to provide enhanced clamping force and accuracy. DOLPHIN ERG Tap Collets can be used for Tapping operations.

Model	D	D3	D4	L	L1	L3	L4	Capacity
ER16G	16.74	16	13.8	27.5	20.8	4.0	6.26	M3-M12
ER20G	20.74	20	17.4	31.5	23.9	4.8	6.36	M3-M17
ER25G	25.74	25	22	34	25.9	5.0	6.66	M3-M22
ER32G	32.74	32	29.2	40	31.8	5.5	7.16	M3-M27

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SDC Collets

DOLPHIN SDC / DC Collets are used alongwith High performance DOLPHIN SDC adaptors. Used for small diameter applications with high runout accuracy.

Model	Range	L	D
SDC6	3-6MM	36	9.6
SDC8	3-8MM	45	15
SDC12	4-12MM	60	22

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Oil Seal Collets

DOLPHIN Seal collets are used for holding Through coolant drills, to avoid spillage of coolants through the ER Collet cavities. DOLPHIN Seal collets have internal interlocking design, so no need for rubber rings.

Model	D	D1	L	L1	Range
ER25	25.00	26	34	6.7	3-16MM
ER32	32.00	33	40	7.2	3-20MM

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Straight Collets for Powermill Chuck

DOLPHIN Straight Collets for Powermill Chuck are suitable for DOLPHIN Powermill Chuck adaptors, for high performance, High RPM very high runout accuracy : milling, drilling operations.

Size	Range	D	D2	L
C-20	3-16MM	20	25	52
C-32	6-25MM	32	37	73

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