SHRINK FIT
NBT30 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 NBT30-SF0125-3.15 NBT30-SF0187-3.15
D D1 Max.
d L
L1
RPM Fig.
1/8" 3.15" 2.00" 0.39" 0.71" 25K 4 3/16" 3.15" 1.50" 0.39" 0.63" 25K 4
L1
L
STANDARD COOLANT PORTED Part Number d L L1
L
D D1 Max.
RPM Fig.
Fig. 4
NBT30-SF0250-3.15CP NBT30-SF0375-3.15CP NBT30-SF0500-3.15CP NBT30-SF0625-3.15CP NBT30-SF0750-3.15CP
1/4" 3.15" 1.50" 0.83" 1.06" 25K 4 3/8" 3.15" 1.75" 0.95" 1.26" 25K 4 1/2" 3.15" 2.00" 0.95" 1.26" 25K 4 5/8" 3.15" 1.75" 1.06" 1.34" 25K 4 3/4" 3.15" 1.50" 1.30" 1.54" 25K 4
" CP " stands for " Coolant Ported " . Shrink fit is center-thru coolant capable. Contact us for additional coolant options.
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