YUKIWA Engineered Products

Yukiwa Engineered Products Catalog

Drill Mill Chuck

• Product Introduction

High-accuracy Drill Mill
Yukiwa's drill-mill collets are not interchangeable with ER and ESX spring collets. Yukiwa's super quality drill-mill collets are the result of more than 40 years of experience and achievement as manufacturer specializing in collet chucks. Even the standard Collets have accuracy (T.I.R.) of half the specified figures under DIN6341.
Strong Gripping Torque	Tapping Collets
YUKIWA's lock nuts have steel balls inserted and have gripping torque approximately two times that of lock nuts without steel balls.	YUKIWA's tapping collets are the same shape and size of our drill-mill collets and are interchangeable with each other. The tapping collets feature a "floating mechanism" inside and are suitable for application on machines where spindle rotation is not synchronized with feed-rate.

Dust Protection Lock-nut	Simple and Ensured On-Off of Collet
Lock-nuts with steel-cover for dust -protection are also available at option. These dust-protection lock-nuts prevent dust and metal chips from entering the spring collet slits, preventing contamination and damage of the collet and holder.	A crescent-shaped rib is fitted on the inside periphery of the lock-nut. Place the collet into the lock-nut and tilt the collet slightly so that the crescent shaped rib fits securely into collet's circumferencial notch. When the lock-nut and collet have been assembled and screwed to the chuck body, insert the tool into collet and tighten lock-nut with Spanner wrench.

• Drill Mill Collets (YCC Collets)


In addition to the standard collets, AA-class collets are also available In ordering AA-class collets, please specify as "YCC13-1/2 AA."

• Tapping Collets

How to use

The following programming for tapping process is recommended; fast approach to the work piece, then tapping feed with approxiomately 95% of the pitch value,which uses 20-30% of the compensation stroke(E), when the spindle rotation and feed movement are simultaneously reversed.

Return feed must be made with 100% of the pitch, which maintains the sleeve of tapping collet in compensation stroke up to the tap disengagement; quick return can then be programmed with usual stroke security. The relatively long axial compensation assists easy programming. When tapping with very high speed, an appropriate compensation may be necessary to balance the differences of intertia between the spindle and the feed movement on reverse.

• Drill Mill Chucks w/ CAT-V Flange

Taper Shank dimensions are in accordance with ANSI/ASME B5.50 - 1985.

Retention Knob, Collet and Spanner are not included in the above. They are separate accessories.

• Drill Mill Chucks w/ 15T, 20T, 25T Flange

Dimensions of the Taper Shanks are in accordance with JBS4002-1987
JBS: Standards of The Japan Bench Machine Tool Builders Association,
Collet and Spanner are not included in the above. They are separate accessories.
Dimension of Flats (H) is in mm. When using a spanner, use a mm-size spanner for safety.
Short Tool Shank Drill-Mill Chucks under TBS4003-1993 are also available by special order.

• Drill Mill Chucks w/ BT30,BT35 Flange

Dimensions of tapererd shank are in accordance with MAS403-1982 BT Tapered Shank.

Retention knob, Collet and Spanner are not included in the above. They are separate accessories.

• Drill Mill Chucks w/ BT40,BT50 Flange

Drill Mill Chucks w/ BT40, BT50 Flange Chart

Dimensions of tapered shank are in accordance with MAS403-1982 BT Tapered Shank.

Retention knob, Collet and Spanner are not included in the above. They are separate accessories.

• Drill Mill Chucks w/ National Standard Taper

Please call or contact Yukiwa Seiko USA Inc. for more information on this item.

• Drill Mill Chucks w/ Straight Shank(for side lock)

Please call or contact Yukiwa Seiko USA Inc. for more information on this item.

• Drill Mill Chucks w/ Morse Taper Shank Style "A" Tang End

Please call or contact Yukiwa Seiko USA Inc. for more information on this item.

• Drill Mill Chucks w/ Jacobs Taper

Please call or contact Yukiwa Seiko USA Inc. for more information on this item.

• Drill Mill Chucks for Oil Coolant Drills

Coolant-Sealing Back-up Screw

These back-up screws have a seal made from urethane material, resistable both to water-soluble coolant and to oil coolant, which enables machining without decrease of coolant supplying pressure.

Applicable for oil-coolant drills having more than 5mm diameter hole.

These Coolant Sealing Back-up Screws are capable of sealing for oil-coolant drills having hole diameter 5 to 20mm.
Oil Coolant Drills Description

• Accessories and Replacement Parts for Drill Mill Chucks

Spanners

Code No.	Model No.	Suitable Drill Mill Chuck
4401001	FS 10	DMC 5
4401101	FS 22	DMC 7
4401201	FS 33	DMC 10
4401301	FS 36	DMC 13
4401401	FS 42	DMC 16
4401501	FS 52	DMC 20
4401601	FS 62	DMC 25
4401701	FS 76	DMC 32

These spanners are to be used for tightening collets. They are accessories and must be separately ordered when required.

Lock Nuts

Code No.	Model No.	Fig	M	D	L	Suitable Drill-Mill Chuck
4402001	RNT 05	1	M10 x 0.75	13	11.5	DMC 05
4402101	RNT 07	2	M15 x 1	22	19.5	DMC 07
4402201	RNT 10		M23 x 1	33	24.5	DMC 10
4402301	RNT 13		M26 x 1	36	26	DMC 13
4402401	RNT 16		M32 x 1.5	42	30	DMC 16
4402501	RNT 20		M40 x 1.5	52	31	DMC 20
4402601	RNT 25	3	M50 x 1.5	62	40	DMC 25
4402701	RNT 32	3	M62 x 2	76	50	DMC 32

Lock Nuts for Dust Protection

The steel cover prevents metal chips from entering into the collet slits and accordingly protects the tapered parts of the collet and the collet holder against damages and prevents deterioration of the run-out accuracy.
The steel cover is press-fitted with its edge being caulked and therefore not detachable during use. Also it is durable against hot-burned metal chips.

Methods for use:

1.On the center of the lock-nut, an opening of 0.12"dia. is made.

2. This opening must be widened by a drilling machine to 0.01" to 0.012" larger than the outside diameter of the tool shank to be used.

3. Mounting of the lock-nut to a drill-mill chuck must be done after metal chips have completely been removed from chuck.

Code No.	Model No.	M	D	L	Suitable Drill-Mill Chuck
4461000	RNT 7D	M15 x 1	23	20	DMC 07
4462000	RNT 10D	M23 x 1	34	25.5	DMC 10
4463000	RNT 13D	M26 x 1	37	26.6	DMC 13
4464000	RNT 16D	M32 x 1.5	43	30.5	DMC 16
4465000	RNT 20	M40 x 1.5	53	31.5	DMC 20

• Retention Knobs

Besides the standard retention knobs specified below, special-size retention knobs are also available. When ordering special-size retention knobs, the following must be confirmed: Machine Tool Manufacturer, Machine Model, Type of Flange, Size of Taper, Thread Dimensions, etc.

ANSI/ASME B5.50 -1985
for CAT-V Flange

Code No.	Model No.	D1	D2	D3	D	L1	L2	L3	G	S
0403401	R30	0.65	0.385	0.520	0.187	1.10	0.460	0.320	1/2" - 13UNC	0.53
0403701	R40	0.93	0.490	0.740	0.281	1.50	0.640	0.440	5/8"- 11UNC	0.75
0403801	R45	1.19	0.605	0.940	0.375	1.80	0.820	0.580	3/4" - 10UNC	1.00
0403901	R50	1.43	0.820	1.140	0.468	2.30	1.000	0.700	1" - 8UNC	1.25

MAS403
for BT Flange

Code No.	Model No.	a	D1	D2	D3	D4	G Thread	L1	L2	L3	Flats
4403401	P30T-I	45°	16.5	12.5	7	11	M12 x 1.75	43	23	18	13
4403402	P30T-II	60°
4403501	P35T-II	45°	20	12.5	8.5	13	M12 x 1.75	48	28	22.5	17
4403502	P35T-II	60°
4403601	P35TR	45°	18	13	7	10	M12 x 1.75	43	25	20	14
4403701	P40T-I	45°	23	17	10	15	M16 x 2	60	35	28	19
4403702	P40T-II	60°
4403801	P45T- I	45°	31	21	14	19	M20 x 2.5	70	40	31	24
4403802	P45- II	60°
4403901	P50T-I	45°	38	25	17	23	M24 x 3	85	45	35	30
4403902	P50T-II	60°

• New Drill Mill Chucks - NDC Series

Now introducing our "NEW DRILL MILL CHUCK" which will add some more features of quality to our current drill mill chucks, such as higher rigidty and higher accuracy, without sacrificing any of features of these drill mill chucks which havelong been appreciated by the customers in the world.
Then, the NEW DRILL MILL CHUCK will well satisfy the current-increasing need of the customers for higher quality machining.

Model	L	Capacity	Lock-nut O.D
15T-NDC5	35	0.5 ~ 7.0	13
15T-NDC7S	48· 55 · 75	0.5 ~ 7.0	22
15T-NDC10	52	0.5 ~ 10.0	33
S20T-NDC7	45 · 60 · 75	0.5 ~ 13.0	25
S20T-NDC10	45 · 60 · 75	0.5 ~ 10.0	33
S20T-NDC13	45 · 75	0.5 ~ 13.0	36
S20T-NDC16	60	2.5 ~ 16.0	42
BT30-NDC7S	60· 90 · 120	0.5 ~ 7.0	22
BT30-NDC7	60· 90 · 120	0.5 ~ 7.0	25
BT30-NDC10	60· 90 · 120	0.5 ~ 10.0	33
BT30-NDC13	60· 90 · 120	0.5 ~ 13.0	36
BT30-NDC16	75· 105 · 120	2.5 ~ 16.0	42
BT30-NDC20	75· 105 · 120	3.5 ~ 20.0	52
BT30-NDC25	90 · 120	5.0 ~ 25.0	62
BT35-NDC16	75	2.5 ~ 16.0	42
BT35-NDC20	75	3.5 ~ 20.0	52
BT35-NDC25	90	5.0 ~ 25.0	62
BT40-NDC7	60	0.5 ~ 7.0	25
BT40-NDC10	60· 90 · 120	0.5 ~ 10.0	33
BT40-NDC13	75· 105 · 135	0.5 ~ 13.0	36
BT40-NDC16	75· 105 · 135	2.5 ~ 16.0	42
BT40-NDC20	75· 105 · 135	3.5 ~ 20.0	52
BT40-NDC25	75· 105 · 135	5.0 ~ 25.0	62
BT40-NDC32	105 · 135	5.0 ~ 32.0	76
BT50-NDC10	90· 120· 150	0.5 ~ 10.0	33
BT50-NDC13	90· 120· 150	0.5 ~ 13.0	36
BT50-NDC16	105· 135· 165	2.5 ~ 16.0	42
BT50-NDC20	105· 135· 165	3.5 ~ 20.0	52
BT50-NDC25	105· 135· 165	5.0 ~ 25.0	62
BT50-NDC32	105· 135· 165	5.0 ~ 32.0	76

• New Drill Mill Chucks - Floating Reamer Holder

Use this holder for reaming work after pre-reaming work on CNC lathe, etc.
Effective for reaming work

Model	S25-FRH-NDC1 0-105
Shank Diameter	ø25H7
Collet	YCC10 (ø1 ~ 10)
Radial Floating Amount	0.1mm (in radius)
Specification	With Strength adjusting device for Centering Spring.

• New Drill Mill Chuck(for Side Lock)

Model	L	Capacity	Lock-nut O.D
S16-NDC7 S	85 · 115	0.5 ~ 7.0	22
S20 NDC7 S	105 · 135	0.5 ~ 7.0	22
S20 NDC 10	115 · 145	0.5 ~ 10.0	33
S20 NDC 13	115 · 145	0.5 ~ 13.0	36
S25 NDC 10	125	0.5 ~ 10.0	33
S25 NDC 13	135 · 165	0.5 ~ 13.0	36
S25 NDC 16	130	2.5 ~ 16.0	42
S32 NDC 13	130 · 160	0.5 ~ 13.0	36
S32 NDC 16	140 · 180	2.5 ~ 16.0	42
S40 NDC 20	165	3.5 ~ 20.0	52
S42 NDC 20	165	3.5 ~ 20.0	52
S42 NDC 25	180	5.0 ~ 25.0	62

• New Drill Mill Chuck w/ Straight Shank (for Milling Chucks)

Model	L	Capacity	Lock-nut O.D
ST 6 NDC 5	60 · 80	0.5 ~ 5.0	13
ST12 NDC 5	75 · 110	0.5 ~ 5.0	13
ST16 NDC 7S