SHELL MILL HOLDERS
BT SHELL MILL HOLDERS
COOLANT-THRU Coolant-Thru Thru-pilot (standard)
T.I.R. <.0004” run out at pilot
• Accommodates face mills with pilot diameters ranging from 1/2” (12mm) to 1-1/2” (40mm) • Pilot diameter sized for precision fit with cutter • Removable/replaceable drive keys as standard • Fine thread locking screw included • AT3 or better taper
RPM
Speed Up to 20,000 rpm
MILLING
Please note that the maximum RPM listed in our catalog may vary depending on the toolholder shank, weight, balanceability and the G rating.
BT30 - INCH Part Number B3001-0500-1.19CP B3001-0750-1.19CP B3001-1000-1.19CP
D d
d
L
D L1
Key Size Arbor Thread
1/2" 3/4"
1.19"
1.38" 0.57"
1/4"
1/4"-28 3/8"-24 1/2"-20
L L1
1.19" 2.00" 0.67" 1.19" 2.38" 0.67"
5/16"
1"
3/8"
Available in TAPER PLUS + Dual-taper and flange contact
BT40 - INCH Part Number B4001-0500-1.75CP B4001-0750-1.75CP B4001-1000-1.75CP B4001-1500-2.00CP
d
L
D L1
Key Size Arbor Thread
1/2" 3/4"
1.75" 1.38" 0.57" 1.75" 1.93" 0.67" 1.75" 2.38" 0.67"
1/4"
1/4"-28 3/8"-24 1/2"-20 3/4"-16
5/16"
1"
3/8" 5/8"
1-1/2" 2.00" 3.80" 0.92"
BT40 - METRIC Part Number
d
L
D L1
Key Size Arbor Thread
B4001-22-50 B4001-27-50 B4001-32-50 B4001-40-60
22mm 50mm 40mm 19mm 10mm 27mm 50mm 48mm 21mm 12mm 32mm 50mm 58mm 24mm 14mm 40mm 60mm 67mm 27mm 16mm
M10 M12 M16 M20
Replacement Keys Page 188
Replacement Arbor Screws Page 188
181
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