BT30・BBT30 Tooling System
For high-performance Brother Tapping Centers, YUKIWA Toolings of high precision and highrigidity are recommended to be used, assuring further precise and eﬃcient machining.
p43 BT30 Super G1 Chucks

Drill bits

p50 BBT30 Super G1 Chucks

What are the commitments ofYUKIWA SEIKO INC.?

Maintaining high machining accuracy is an important ﬁrst step toward laborsaving andstreamlining. In order to realize it, it is vital to ensure accuracy and quality of tool holders inaddition to those of machine tools and cutting tools. Our tooling systems use self-developed
collets that have incorporated our highest level of technology and long years of experience, andhave some special quality not seen in similar products made by other manufacturers. We hope
you will take advantage of our systems to improve your machining quality and streamlining.

End mills
SG Collets

Reamers

p44 BT30 Hybrid G1 Chucks

Commitment

Commitment

Commitment

We are strong in the area ofsmall-diameter tooling

We are strong in the area ofhigh-precision machining.

Commitment to our collet
chuck systems

We have been manufacturing spring

Generally, the accuracy of a tooling

The Collet Holders can be adjusted

collets to pursue techniques forcollet means the accuracy of awhile being attached to the main

“gripping” tools and workpieces

collet only, and other companies dospindle of a machine, and they cansince its foundation. Our tooling

not show the overall accuracy thatmake the runout closer to zero. In

products are remarkably effective inincludes the main body of a holder.

addition, the Collet Holders require

the machining fields that require

For our “Hybrid G1 Chucks and Superno special devices such as a heatinghigh speed and high precision, andG1 Chucks,” we guarantee as

device to attach or detach a tool,is highly valued by users andstandard the overall runout accuracy

and are safe and easy to use. Theymachine manufacturers involved inof a collet attached to the main

also save time significantly forhigh-speed microfabrication such as

body of a holder.

attaching or detaching tools.

Drill bits

p45 BT30 New Drill Mill Chucks
YCC Collets

p50 BBT30 New Drill Mill Chucks

p46 BT30 Power Lock Milling Chucks

End mills

End mills
Straight Collets

p51 BBT30 Power Lock Milling Chucks

End mills

p46 BT30 Pencil Mill Chucks

YPC Collets

die machining and small holedrilling.

Overall Runout Accuracy

Double Taper Collets● Overall RunoutAccuracy● Double Taper

The Hybrid G1 Chucks ensure

Collets can exert a highan overall runout accuracy ofgripping force due to their

3 μm, and the Super G1

double-taper shape.

Tap drills

p47 BT30 Floating Tap Holders

TAP Collets

Face mills

p47 BT30 Face Mill Arbors

Chucks ensure an overall

Set Screws

p51 BBT30 Face Mill Arbors

runout accuracy of 5 μm
(runout accuracy of a collet
only: 3 μm).

p47 BT30 Jacobs Taper Arbors

The SG Collets and the YCC

Keyless Chucks

Drill bits

4×d

Example of drilling small diameter holes with a narrow pitch(φ0.03 through holes, wall thickness: 0.03 mm, plate thickness: 0.2 mm)

Reamers
Dream Chucks

p48 BT30 CNC Keyless Chucks
p52 BBT30 CNC Keyless Chucks
p48 BT30 Super Keyless Dream Chucks
p52 BBT30 Super Keyless Dream Chucks

p53 BT30・BBT30 Special Accessories

Center drill bits

Tap drills

XY pitch P = 0.06 mm(For tap drills, use dream chucks.)

Hole position accuracy ±0.0013 mm

Tooling machine nameHigh-precision, high-speed, small-diameter, microfabrication machine MEGA Ⅲ-500 (Roku-Roku Sangyo, Ltd.)

HolderCollet Holder and Hybrid G1 Chuck (Yukiwa Seiko Inc.)

Tool

Solid Carbide Shank Drill ADR-0003 (Saito Seisakusho Co., Ltd.)

Workpieces

Sumika Super S1000 20 × 20 × 0.5 (φ0.03 drilling from the back) [mm]Machining time

21 minutes 4 seconds/100 holes (12.6 seconds/one hole, including centering)

Measurement data of φ0.03 drilling