MMC COLLET CHUCKS
BT MMC COLLET CHUCKS
• No nut required. • Slim, compact nose front clamping allows for greater rigidity and precision gripping. • High concentricity and repeatability. • Easy-to-use draw-in collet clamping pulled by standard side wrench. • Pre-balanced for high-speed applications.
T.I.R. <.00012" at 4xD Speed Up to 30,000 rpm
RPM
COOLANT-THRU Coolant-Thru Thru-tool coolant
MILLING
DRILLING REAMING
Please note that the maximum RPM listed in our catalog may vary depending on the toolholder shank, weight, balanceability and the G rating.
BT30
d
Collet Series
Max. RPM
Within 3μm
Part Number
Collet Range
Wrench L L1
D
4d
BT30-MMC4-105-AA MMC4 0.039 - 0.157" (1 - 4mm) WRENCH-ALLEN6 4.13" 1.18" 0.59" 30K BT30-MMC8C-65-AT* MMC8 0.079 - 0.394" (2 - 10mm) EA573KL-15 2.56" 1.18" 0.79" 30K BT30-MMC8C-105-AA MMC8 0.079 - 0.394" (2 - 10mm) WRENCH-ALLEN6 4.13" 1.30" 0.79" 30K BT30-MMC12C-105-AA MMC12 0.157 - 0.5" (4 - 13mm) WRENCH-ALLEN6 4.13" 1.38" 1.18" 30K
L1
D
L
Notes: • *Wrench included with holder except for AT-type holders. • *AT denotes collet is drawn directly from the rear of the holder by a draw bolt.
Wrench-THEX5 (for AT-Type Chucks)
Wrench-ALLEN6 (for AA-Type Chucks)
BT40
d
Collet Series
Max. RPM
Part Number
Collet Range
Wrench L L1
D
Within 3μm
4d
BT40-MMC4-90-AA BT40-MMC8C-90-AA
MMC4 0.039 - 0.157" (1 - 4mm) WRENCH-ALLEN6 3.54" 1.26" 0.59" 30K
MMC8 0.079 - 0.394" (2 - 10mm) WRENCH-ALLEN6 3.54" 1.30" 0.79" 30K BT40-MMC8C-120-AA MMC8 0.079 - 0.394" (2 - 10mm) WRENCH-ALLEN6 4.72" 1.57" 0.79" 30K BT40-MMC8C-150-AA MMC8 0.079 - 0.394" (2 - 10mm) WRENCH-ALLEN6 5.90" 1.57" 0.79" 30K BT40-MMC12C-90-AA MMC12 0.157 - 0.5" (4 - 13mm) WRENCH-ALLEN6 3.54" 1.38" 1.18" 30K BT40-MMC12C-120-AA MMC12 0.157 - 0.5" (4 - 13mm) WRENCH-ALLEN6 4.72" 2.36" 1.18" 30K BT40-MMC12C-150-AA MMC12 0.157 - 0.5" (4 - 13mm) WRENCH-ALLEN6 5.90" 2.76" 1.18" 30K Note: Wrench included with holder.
L1
D
L
Wrench-ALLEN6 (for AA-Type Chucks)
BT50
d
Collet Series
Max. RPM
Part Number
Collet Range
Wrench L L1
D
Within 3μm
4d
BT50-MMC4-105-AA MMC4 0.039 - 0.157" (1 - 4mm) WRENCH-ALLEN6 4.13" 1.18" 0.59" 20K BT50-MMC8C-105-AA MMC8 0.079 - 0.394" (2 - 10mm) WRENCH-ALLEN6 4.13" 1.30" 0.79" 20K BT50-MMC8C-135-AA MMC8 0.079 - 0.394" (2 - 10mm) WRENCH-ALLEN6 5.31" 1.57" 0.79" 20K BT50-MMC12C-105-AA MMC12 0.157 - 0.5" (4 - 13mm) WRENCH-ALLEN6 4.13" 1.38" 1.18" 20K BT50-MMC12C-135-AA MMC12 0.157 - 0.5" (4 - 13mm) WRENCH-ALLEN6 5.31" 2.36" 1.18" 20K Note: Wrench included with holder.
L1
D
L
Wrench-ALLEN6 (for AA-Type Chucks)
MPK & VMK Collets Pages 96-97
Retention Knobs Page 267
Tool Clampers Page 274
92
847-367-4800
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