BIG DAISHOWA Product Guide Vol. 2

TAP HOLDERS

MEGA SYNCHRO TAPPING HOLDER

COOLANT

THROUGH

AVAILABLE IN BCV, BBT, HSK, BIG CAPTO & CKB

MGT 6-MGT 20 Tapping Range: ANSI: No.2-AU3/4, JIS/DIN/ISO: M1-M36

54 bodies and 276 tap holders available to improve thread quality and tool life during rigid tapping. Reduces thrust loads caused by synchronization errors up to 90%. Super slim nuts and varied length tap holders provide optimal access to confined areas which eliminates the need for special length taps.

Coolant Through Center Capability for All Models Coolant is supplied through the tool and to the tool periphery simultaneously.

THROUGH TOOLS

JET THROUGH

Also available in straight shank & N/C lathe type. See pg. 15.

Coolant is Supplied Through Both the Tool and Slits of the Tap Holder

Coolant is Supplied Through Slits of the Tap Holder

MGT 3 Tapping Range: ANSI: No.0-No.6, JIS/DIN/ISO: M1-M3

MGT 36 Tapping Range: ANSI: AU13/16-AU1-1/2 / AP3/8-AP1, JIS/DIN/ISO: M20-M36

Time (sec.)

Secure Drive The body and tap holder are fixed with a drive key in the rotation direction as well as the square of the tap.

0

.2

.4

.6

.8

1.0

1.2

1.4

1.6

-90 -68 -45 -22 0 22

Spiral Tap AU:1/4-20, N=1,000 RPM Spiral grooves on spiral tap cause loading in the reverse direction, similar to an end mill. *Measured by Kistler Dynamometer

BIG MEGA SYNCHRO

Approx. 13.2 lbs

BIG MEGA SYNCHRO reduces load to approx. 13.2 lbs. This is less than 1/10th of the load compared to a collet chuck.

DRIVE KEY

-180 -160 -135 -110

Approx. 165 lbs of reversal load is applied to a tap held with a collet chuck.

Approx. 165 lbs Collet Chuck

forward

stop

reverse

11

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