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
.108-.512
1.378
MERN20
MGR35L
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
• 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
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.
ACCESSORIES
COLLET PG. 394
MEGA NUT* PG. 397
PERFECT SEAL PG. 398
SOLID NUT PG. 397
MEGA WRENCH PG. 410
SCREW PG. 433
*MEGA NUT is the recommended nut to achieve high accuracy and clamping force
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