End Mill Holders

Weldon Style - Metric


CHIRON STYLE 1: Non-removable drive ring. CHIRON STYLE 2: Removable drive ring. For information on Modular Shanks, Extensions and Reductions, refer to Boring.

6MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E F H Set Screw Tight Torque
B40-M06EM2 BT40 2 - Double 6mm .88 2.25 3.13 .38 - - 029-018 7 ft. lbs
BT40-M06EM100 BT40 1 - Double 6mm .98 3.94 - .71 - - 029-933 7 ft. lbs
BT50-M06EM63 BT50 1 - Double 6mm .98 2.48 - .71 - - 029-933 7 ft. lbs
BT50-M06EM100 BT50 1 - Double 6mm .98 3.94 - .71 - - 029-933 7 ft. lbs
C40-M06EM2 CAT 40 2 C40B-M06EM2 Double 6mm .88 2.50 3.50 .38 - - 029-018 7 ft. lbs
C50-M06EM2 CAT 50 2 - Double 6mm .88 2.50 4.25 .44 - - 029-018 7 ft. lbs
8MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E F H Set Screw Tight Torque
B40-M08EM2 BT40 2 - Double 8mm 1.00 2.25 3.13 .44 - - 029-018 9 ft. lbs.
BT40-M08EM100 BT40 1 - Double 8mm 1.10 3.94 - .71 - - 029-934 9 ft. lbs
BT50-M08EM63 BT50 1 - Double 8mm 1.10 2.48 - .71 - - 029-934 9 ft. lbs
BT50-M08EM100 BT50 1 - Double 8mm 1.10 3.94 - .71 - - 029-934 9 ft. lbs
C40-M08EM2 CAT 40 2 C40B-M08EM2 Double 8mm 1.00 2.50 3.50 .44 - - 029-018 9 ft. lbs
C50-M08EM2 CAT 50 2 - Double 8mm 1.00 2.50 4.25 .44 - - 029-018 9 ft. lbs
10MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E Set Screw Tight Torque
B40-M10EM2 BT40 2 - Double 10mm 1.00 2.25 3.13 .75 029-902 12 ft. lbs
BT40-M10EM100 BT40 1 - Double 10mm 1.378 3.94 - .79 029-935 12 ft. lbs
BT50-M10EM65 BT50 1 - Double 10mm 1.378 2.56 - .79 029-935 12 ft. lbs
BT50-M10EM100 BT50 1 - Double 10mm 1.378 3.94 - .79 029-935 12 ft. lbs
C40-M10EM2 CAT 40 2 C40B-M10EM2 Double 10mm 1.00 2.50 3.50 .75 029-902 12 ft. lbs
C50-M10EM2 CAT 50 2 - Double 10mm 1.00 2.50 4.25 .75 029-902 12 ft. lbs
12MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E Set Screw Tight Torque
B40-M12EM2 BT40 2 - Double 12mm 1.25 2.25 3.13 .88 029-917 17 ft. lbs
BT40-M12EM100 BT40 1 - Double 12mm 1.65 3.94 - .89 029-936 17 ft. lbs
BT50-M12EM80 BT50 1 - Double 12mm 1.65 3.15 - .89 029-936 17 ft. lbs
BT50-M12EM100 BT50 1 - Double 12mm 1.65 3.94 - .89 029-936 17 ft. lbs
C40-M12EM2 CAT 40 2 C40B-M12EM2 Double 12mm 1.25 2.62 3.50 .88 029-917 17 ft. lbs
C50-M12EM2 CAT 50 2 - Double 12mm 1.25 2.62 4.25 .88 029-917 17 ft. lbs
14MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E Set Screw Tight Torque
B40-M14EM2 BT40 2 - Double 14mm 1.25 2.25 2.00 .88 029-917 17 ft. lbs
C40-M14EM2 CAT 40 2 C40B-M14EM2 Double 14mm 1.5 2.62 3.50 .88 029-917 17 ft. lbs
C50-M14EM2 CAT 50 2 - Double 14mm 1.5 2.62 4.38 .88 029-917 17 ft. lbs
16MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E Set Screw Tight Torque
B40-M16EM2 BT40 2 - Double 16mm 1.50 2.25 2.13 .94 029-918 31 ft. lbs
BT40-M16EM100 BT40 1 - Double 16mm 1.89 3.94 1.93 .95 029-937 31 ft. lbs
BT50-M16EM80 BT50 1 - Double 16mm 1.98 3.15 - .95 029-937 31 ft. lbs
BT50-M16EM100 BT50 1 - Double 16mm 1.98 3.94 - .95 029-937 31 ft. lbs
C40-M16EM2 CAT 40 2 C40B-M16EM2 Single 16mm 1.50 2.75 2.13 .94 029-918 31 ft. lbs
C50-M16EM3 CAT 50 2 - Single 16mm 1.50 3.75 2.13 .94 029-918 31 ft. lbs
20MM
Part Number Taper Type Series Flange Coolant Ends A (Dia.) B (Dia.) C D E Set Screw Tight Torque
B40-M20EM3 BT40 2 - Double 20mm 1.75 3.38 2.25 1.00 029-925 43 ft. lbs
BT40-M20EM100 BT40 1 - Double 20mm 2.047 3.94 2.01 .98 029-938 43 ft. lbs
BT50-M20EM80 BT50 1 - Double 20mm 2.047 3.15 2.01 .98 029-938 43 ft. lbs
BT50-M20EM100 BT50 1 - Double 20mm 2.047 3.94 2.01 .98 029-938 43 ft. lbs
C40-M20EM3 CAT 40 2 C40B-M20EM3 Single 20mm 1.75 3.50 2.25 1.00 029-925 43 ft. lbs
C50-M20EM3 CAT 50 2 - Single 20mm 1.75 3.75 2.25 1.00 029-925 43 ft. lbs
25MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E F H Set Screw Tight Torque
BT40-M25EM35 BT40 1 - Double 25mm 2.165 1.38 2.32 .95 - - 029-941 69 ft. lbs
BT40-M25EM4 BT40 2 - Double 25mm 2.00 4.00 3.00 1.13 1.00 - 029-926 69 ft. lbs
BT50-M25EM100 BT50 1 - Double 25mm 2.56 3.94 2.32 .95 .98 - 029-939 69 ft. lbs
C40-M25EM4 CAT 40 2 C40B-M25EM4 Single 25mm 2.00 4.00 3.00 1.13 1.00 - 029-926 69 ft. lbs
C50-M25EM4 CAT 50 2 - Single 25mm 2.00 4.00 3.00 1.13 1.00 - 029-926 69 ft. lbs
32MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E F Set Screw Tight Torque
B40-M32EM4 BT40 2 - Double 32mm 2.50 4.00 2.60 1.13 1.00 029-922 69 ft. lbs
BT40-M32EM70 BT40 1 - Double 32mm 2.835 2.76 2.48 .95 - 029-940 69 ft. lbs
BT50-M32EM105 BT50 1 - Double 32mm 2.835 4.13 2.48 .95 1.10 029-940 69 ft. lbs
C40-M32EM4 CAT 40 2 C40B-M32EM4 Single 32mm 2.50 4.00 2.60 1.13 1.00 029-922 69 ft. lbs
C50-M32EM4 CAT 50 2 - Single 32mm 2.50 4.00 2.60 1.13 1.00 029-922 69 ft. lbs
40MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E F Set Screw Tight Torque
BT40-M40EM110 BT40 1 - Double 40mm 3.15 4.33 2.87 1.18 1.3 029-940 69 ft. lbs
BT50-M40EM120 BT50 1 - Double 40mm 3.15 4.72 2.87 1.18 1.26 029-940 69 ft. lbs
C50-M40EM4 CAT 50 2 - Single 40mm 2.75 4.00 3.25 1.13 1.00 029-922 69 ft. lbs
50MM
Part Number Taper Type Style Flange Coolant Ends A (Dia.) B (Dia.) C D E F Set Screw Tight Torque
BT50-M50EM125 BT50 1 - Double 50mm 3.94 4.92 3.27 1.38 1.38 029-962 125 ft. lbs