COLLET CHUCKS
MEGA ER GRIP CLAMPING RANGE: ø.075"-.787" (ø1.9-20mm) For Drills, Reamers, Taps & Finishing End Mills
COOLANT
THROUGH
H
Adjusting Screw (Optional)
BBT No.
L 1
L
R
SPINDLE SYSTEM DUAL CONTACT
Catalog Number
Nut (NOT Included)
ød
øD
L
L 1
H
Collet
Wrench
BBT30-MEGAER16-60NL BBT30-MEGAER16-75NL BBT30-MEGAER16-90NL BBT30-MEGAER20-60NL BBT30-MEGAER20-75NL BBT30-MEGAER20-90NL BBT30-MEGAER25-60NL BBT30-MEGAER25-75NL BBT30-MEGAER25-90NL BBT30-MEGAER32-60NL BBT30-MEGAER32-75NL BBT30-MEGAER32-90NL
2.36 2.95 3.54 2.36 2.95 3.54 2.36 2.95 3.54 2.36 2.95 3.54
1.38 1.93 2.52 1.38 1.97 2.56 1.46 2.05 2.64 1.50 2.09 2.68
.075-.394
1.181
1.38-1.85
MERN16*
MGR30L
ERC16-
1.65-2.36
MERN20*
MGR35L
.108-.512
1.378
ERC20-
1.65-2.44
1.73-2.24
MERN25*
MGR42L
.108-.630
1.654
ERC25-
1.73-2.64
1.97
.108-.787
1.969
MERN32*
MGR50L
ERC32-
1.97-2.68
To maintain the accuracy of the tool assembly, do not use collets and nuts manufactured by another company with the chuck body of BIG’s MEGA ER GRIP. We cannot guarantee the accuracy stated for our collets if they are assembled on the chuck body of another manufacturer. ! CAUTION
*Nut, adjusting screw, collet and wrench are not included • Weight does not include collet • MEGA ER GRIP is not able to use DIN6499 Form-A collets and ESX collets
• Please note that the practical spindle speed may be considerably influenced by the machine rigidity and tool balance, when using, slowly ramp up to the appropriate speed starting from slow speeds • “H” indicates the adjustment length with an adjusting screw
ACCESSORIES
COLLET PG. 374
MEGA NUT* PG. 375
PERFECT SEAL PG. 376
SOLID NUT PG. 375
MEGA WRENCH PG. 388
SCREW PG. 411
*MEGA NUT is the recommended nut to achieve high accuracy and clamping force
125
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