SHRINK FIT
BT50 SHRINK FIT HOLDERS
FEATURES • Excellent surface finish, extreme gripping and ideal for high-speed applications • Pre-balanced up to 25,000 RPM • Increase cutting tool life, material removal rate and workpiece accuracy • All shrink fit holders 6mm (1/4") and above include a backup screw MATERIAL: H11 High Alloy Steel HARDNESS: 52 HRc tempered
T.I.R. 0.0001 " in ID bore Speed Up to 25,000 rpm
RPM
COOLANT-THRU Coolant-Thru
Plugable Coolant Ports
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.
D1 D d
STANDARD Part Number BT50-SF0125-3.94 BT50-SF0125-6.30
D D1 D2 Max.
d L L1
RPM Fig.
1/8" 3.94" 2.00" 0.39" 0.71" -
25K 4
L1
1/8" 6.30" 2.00" 0.39" 0.71" 0.90" 25K 5
L
STANDARD COOLANT PORTED Part Number d L L1
D D1 Max.
RPM Fig.
BT50-SF0250-3.94CP BT50-SF0375-3.94CP BT50-SF0500-3.94CP BT50-SF0625-3.94CP BT50-SF0750-3.94CP BT50-SF1000-3.94CP BT50-SF1250-3.94CP
1/4" 3.94" 2.00" 0.39" 0.71" 25K 4 3/8" 3.94" 1.50" 0.83" 1.06" 25K 4 1/2" 3.94" 2.00" 0.95" 1.26" 25K 4 5/8" 3.94" 1.75" 1.06" 1.34" 25K 4 3/4" 3.94" 2.25" 1.30" 1.65" 25K 4
L
Fig. 4
D1 D2 D
1"
3.94" 2.25" 1.73" 2.09" 25K 4
d
1-1/4" 3.94" 2.25" 1.73" 2.09" 25K 4
L1
EXTENDED COOLANT PORTED Part Number d L L1
D D1 D2 Max.
L
RPM Fig.
BT50-SF0250-6.30CP BT50-SF0375-6.30CP BT50-SF0500-6.30CP BT50-SF0625-6.30CP BT50-SF0750-6.30CP BT50-SF1000-6.30CP BT50-SF1250-6.30CP
1/4" 6.30" 1.50" 0.83" 1.06" 1.29" 25K 5 3/8" 6.30" 2.00" 0.95" 1.26" 1.45" 25K 5 1/2" 6.30" 2.00" 0.95" 1.26" 1.45" 25K 5 5/8" 6.30" 1.75" 1.06" 1.34" 1.54" 25K 5 3/4" 6.30" 2.25" 1.30" 1.65" 1.82" 25K 5 1" 6.30" 2.25" 1.73" 2.09" 2.26" 25K 5 1-1/4" 6.30" 2.25" 1.73" 2.09" 2.26" 25K 5 8mm 6.30" 1.50" 0.83" 1.06" 1.29" 25K 5 10mm 6.30" 2.00" 0.95" 1.26" 1.45" 25K 5 12mm 6.30" 2.00" 0.95" 1.26" 1.45" 25K 5 16mm 6.30" 1.75" 1.06" 1.26" 1.54" 25K 5
Fig. 5
BT50-SF8-160CP BT50-SF10-160CP BT50-SF12-160CP BT50-SF16-160CP
" CP " stands for " Coolant Ported " . Shrink fit is center-thru coolant capable. Contact us for additional coolant options.
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