CAT.303M NIKKEN NC Tooling Catalogue

MINI-MINI COLLET （ MPK/PMK/VMK COLLET ）

■ STANDARD COLEET : MPK Collet / PMK Collet

■ FOR CENTRE THROUGH TOOL COOLANT : VMK Collet / VMK-J Collet

Explanation of the Code No. VMK 12 6 J

Explanation of the Code No. PMK 8 2

Non: Without Jet Spread Groove J : With Jet Spread Groove

ID of Collet

Style No.

Symbol of VMK collet Style No.

Symbol of PMK collet

φ D

Jet Spread Groove (J Type)

Jet spread Hole Type VMK8-2J 、 VMK8-3J

Min. Gripping Length

Code No.

MPK 4 - 1 - 1.5 - 2 - 2.5 - 3 - 3.5 - 4

PMK 8 - 2 - 2.2 - 2.4 - 2.6 - 2.8 - 3 - 3.2 - 3.4 - 3.6 - 3.8 - 4 - 4.2 - 4.4 - 4.6 - 4.8 - 5 - 5.2 - 5.4 - 5.6 - 5.8 - 6 - 6.2 - 6.4 - 6.6

VMK8 - 2 - 3 - 4 - 5 - 6 - 7 - 8

VMK12- 4 - 5 - 6 - 8 - 10 - 12

PMK 8-6.8 - 7 - 7.2 - 7.4 - 7.6 - 7.8 - 8 - 1/8 - 3/16 PMK12 - 4

6 8

10 10 12 12 12 16 16 16 16 16 20 20 20 22 22 22 22 22 22 22 22 22 22 22

22 22 22 22 22 22 22 16 22 19 22 30 31 31 31

10 16 20 22 22 22 22 10 16 20 22 22 22 22 15 22 22 22 22 16 22 22 22 22

19 22 30 31 31 31 19 22 30 31 31 31 22 30 31 31 31 31 22 30 31 31 31 31

10 12 16 16 16 8 10 16

- 4 J - 5 J - 6 J - 8 J - 10 J - 12 J

- 1/16 - 3/32 - 1/8

- 2 JB - 3 JB

- 4 J - 5 J - 6 J - 7 J - 8 J

- 5 - 6 - 8 - 10 - 12

■ For Centre Through Tool Coolant ： MPK-C

- 3/16 - 1/4 - 5/16 - 3/8 - 7/16 - 1/2

Min. Gripping Length

- 1/8 - 3/16 - 1/4 - 5/16 - 3/8 - 1/8 JB - 3/16 J - 1/4 J - 5/16 J - 3/8 J

Code No.

MPK 4 - 3C - 4C

16 16

- 3/16 J - 1/4 J - 5/16 J - 3/8 J - 7/16 J - 1/2 J

■ Jet Spread Hole Type ： MPK-JB

Min. Gripping Length

Code No.

MPK 4 -2JB - 3JB - 4JB

10 16 16

★ For Centre through tool Coolnant type MINI-MINI Chuck : ★ Standard VMK Collet is for the cutting tool with coolant hole. ★ VMK-J Collet is for the cutting tool without Coolant hole. ★ Please note the acceptable shank tolerance h6. ★ VMK8-2J is Jet Spread Hole type. ★ VMK-2J and VMK-3J will be replaced with VMK-2JB and VMK-3JB as soon as the stock is runs out.

★ Please note the acceptable shank tolerance of MPK Collet is h6. ★ Even the gripping range of PMK Collet is 0.2mm / dia. ( e.g. PMK8-2 : 1.8 ～ 2.0) but the shank tolerance of h6 highly recommended for precision machining.

■ For VEGA CHUCK

■ For VC HOLDER

VMK Collet Code No. VMK16- 4J, 5J, 6J, 8J, 10J, 12J, 16J VMK20- 6J, 8J, 10J, 12J, 16J, 20J VMK25- 8J, 10J, 12J, 16J, 20J, 25J VMK32- 12J, 16J, 20J, 25J, 32J

VCK Collet Code No.

VCK 6 -2, 3, （ 3.175 ） , 4, 5, 6 VCK13 -3, （ 3.175 ） , 4, 5, 6, 7, 8, 9, 10, 11, 12

★ Please note the acceptable shank tolerance h8. ★ Also available in inch sizes. VCK 6-1/8, 3/16, 1/4 VCK13-1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2 ★ Innerdiameter （ 3.175 ） is the same as 1/8 . Code No. is -1/8 . e.g.VCK6-1/8

★ Please note the acceptable shank tolerance h6. ★ For details of collets for MINI-MINI CHUCK , Please refer to the upper row.

■ VCK Collet

■ Jet coolant splash with J type Nut.

ɸ D

Cap with O-ring For oil hole cutting tool

Cap with triangular grooves The jet coolant pressure creates a tornado effect.

290