Morse taper drill chuck arbor with a drawbar thread, MTB1 through MTB5, with 14 chuck ends from B10 to JT33. The MTB shank has no tang: it is pulled up into the spindle by a drawbar screwed into the internal thread in the back, which makes that thread the one dimension you cannot get wrong. The -I in a part number means Imperial — 49 of the 108 arbors carry a UNC drawbar thread instead of metric, so an American machine and a metric one are served from the same chart. The shank end is the Morse taper, the nose is the Jacobs taper. Thread sizes and dimensions are in the chart below.
| Cart+ | SKU | Price | Quantity | Total | L (mm) | L1 (mm) | L2 (mm) | D (mm) | d (mm) | a (mm) | NO.S | Screw |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MTB1-J0 | $6 | $0 | 71 | 57 | 14 | 12.065 | 6.350 | 3.5 | J0 | M6*1.0P | ||
MTB1-J1 | $6 | $0 | 76 | 57 | 19 | 12.065 | 9.754 | 3.5 | J1 | M6*1.0P | ||
MTB1-J2 | $6 | $0 | 82 | 57 | 25 | 12.065 | 14.199 | 3.5 | J2 | M6*1.0P | ||
MTB1-J3 | $6 | $0 | 91 | 57 | 34 | 12.065 | 20.599 | 3.5 | J3 | M6*1.0P | ||
MTB1-J6 | $6 | $0 | 85 | 57 | 28 | 12.065 | 17.170 | 3.5 | J6 | M6*1.0P | ||
MTB1-J33 | $6 | $0 | 85 | 57 | 28 | 12.065 | 15.850 | 3.5 | J33 | M6*1.0P | ||
MTB1-B10 | $6 | $0 | 78 | 57 | 21 | 12.065 | 10.094 | 3.5 | B10 | M6*1.0P | ||
MTB1-B12 | $6 | $0 | 82 | 57 | 25 | 12.065 | 12.065 | 3.5 | B12 | M6*1.0P | ||
MTB1-B16 | $6 | $0 | 89 | 57 | 32 | 12.065 | 15.733 | 3.5 | B16 | M6*1.0P | ||
MTB1-B18 | $6 | $0 | 97 | 57 | 40 | 12.065 | 17.780 | 3.5 | B18 | M6*1.0P | ||
MTB2-J0 | $6 | $0 | 83 | 69 | 14 | 17.780 | 6.350 | 5 | J0 | M10*1.5P | ||
MTB2-J0-I | $6 | $0 | 83 | 69 | 14 | 17.780 | 6.350 | 5 | J0 | 3/8″-16UNC | ||
MTB2-J1 | $6 | $0 | 88 | 69 | 19 | 17.780 | 9.754 | 5 | J1 | M10*1.5P | ||
MTB2-J1-I | $6 | $0 | 88 | 69 | 19 | 17.780 | 9.754 | 5 | J1 | 3/8″-16UNC | ||
MTB2-J2 | $6 | $0 | 94 | 69 | 25 | 17.780 | 14.199 | 5 | J2 | M10*1.5P | ||
MTB2-J2-I | $6 | $0 | 94 | 69 | 25 | 17.780 | 14.199 | 5 | J2 | 3/8″-16UNC | ||
MTB2-J3 | $6 | $0 | 103 | 69 | 34 | 17.780 | 20.599 | 5 | J3 | M10*1.5P | ||
MTB2-J3-I | $6 | $0 | 103 | 69 | 34 | 17.780 | 20.599 | 5 | J3 | 3/8″-16UNC | ||
MTB2-J4 | $6 | $0 | 114 | 69 | 45 | 17.780 | 28.599 | 5 | J4 | M10*1.5P | ||
MTB2-J4-I | $6 | $0 | 114 | 69 | 45 | 17.780 | 28.599 | 5 | J4 | 3/8″-16UNC | ||
MTB2-J5 | $6 | $0 | 119 | 69 | 50 | 17.780 | 35.890 | 5 | J5 | M10*1.5P | ||
MTB2-J5-I | $6 | $0 | 119 | 69 | 50 | 17.780 | 35.890 | 5 | J5 | 3/8″-16UNC | ||
MTB2-J6 | $6 | $0 | 97 | 69 | 28 | 17.780 | 17.170 | 5 | J6 | M10*1.5P | ||
MTB2-J6-I | $6 | $0 | 97 | 69 | 28 | 17.780 | 17.170 | 5 | J6 | 3/8″-16UNC | ||
MTB2-J33 | $6 | $0 | 97 | 69 | 28 | 17.780 | 15.850 | 5 | J33 | M10*1.5P | ||
MTB2-J33-I | $6 | $0 | 97 | 69 | 28 | 17.780 | 15.850 | 5 | J33 | 3/8″-16UNC | ||
MTB2-B10 | $6 | $0 | 90 | 69 | 21 | 17.780 | 10.094 | 5 | B10 | M10*1.5P | ||
MTB2-B10-I | $6 | $0 | 90 | 69 | 21 | 17.780 | 10.094 | 5 | B10 | 3/8″-16UNC | ||
MTB2-B12 | $6 | $0 | 94 | 69 | 25 | 17.780 | 12.065 | 5 | B12 | M10*1.5P | ||
MTB2-B12-I | $6 | $0 | 94 | 69 | 25 | 17.780 | 12.065 | 5 | B12 | 3/8″-16UNC | ||
MTB2-B16 | $6 | $0 | 101 | 69 | 32 | 17.780 | 15.733 | 5 | B16 | M10*1.5P | ||
MTB2-B16-I | $6 | $0 | 101 | 69 | 32 | 17.780 | 15.733 | 5 | B16 | 3/8″-16UNC | ||
MTB2-B18 | $6 | $0 | 109 | 69 | 40 | 17.780 | 17.780 | 5 | B18 | M10*1.5P | ||
MTB2-B18-I | $6 | $0 | 109 | 69 | 40 | 17.780 | 17.780 | 5 | B18 | 3/8″-16UNC | ||
MTB2-B22 | $6 | $0 | 117 | 69 | 48 | 17.780 | 21.793 | 5 | B22 | M10*1.5P | ||
MTB2-B22-I | $6 | $0 | 117 | 69 | 48 | 17.780 | 21.793 | 5 | B22 | 3/8″-16UNC | ||
MTB2-B24 | $6 | $0 | 127 | 69 | 58 | 17.780 | 23.825 | 5 | B24 | M10*1.5P | ||
MTB2-B24-I | $6 | $0 | 127 | 69 | 58 | 17.780 | 23.825 | 5 | B24 | 3/8″-16UNC | ||
MTB3-J1 | $8 | $0 | 105 | 86 | 19 | 23.825 | 9.754 | 5 | J1 | M12*1.75P | ||
MTB3-J1-I | $8 | $0 | 105 | 86 | 19 | 23.825 | 9.754 | 5 | J1 | 1/2″-13UNC | ||
MTB3-J2 | $8 | $0 | 111 | 86 | 25 | 23.825 | 14.199 | 5 | J2 | M12*1.75P | ||
MTB3-J2-I | $8 | $0 | 111 | 86 | 25 | 23.825 | 14.199 | 5 | J2 | 1/2″-13UNC | ||
MTB3-J3 | $8 | $0 | 120 | 86 | 34 | 23.825 | 20.599 | 5 | J3 | M12*1.75P | ||
MTB3-J3-I | $8 | $0 | 120 | 86 | 34 | 23.825 | 20.599 | 5 | J3 | 1/2″-13UNC | ||
MTB3-J4 | $8 | $0 | 131 | 86 | 45 | 23.825 | 28.599 | 5 | J4 | M12*1.75P | ||
MTB3-J4-I | $8 | $0 | 131 | 86 | 45 | 23.825 | 28.599 | 5 | J4 | 1/2″-13UNC | ||
MTB3-J5 | $8 | $0 | 136 | 86 | 50 | 23.825 | 35.890 | 5 | J5 | M12*1.75P | ||
MTB3-J5-I | $8 | $0 | 136 | 86 | 50 | 23.825 | 35.890 | 5 | J5 | 1/2″-13UNC | ||
MTB3-J6 | $8 | $0 | 114 | 86 | 28 | 23.825 | 17.170 | 5 | J6 | M12*1.75P | ||
MTB3-J6-I | $8 | $0 | 114 | 86 | 28 | 23.825 | 17.170 | 5 | J6 | 1/2″-13UNC | ||
MTB3-J33 | $8 | $0 | 114 | 86 | 28 | 23.825 | 15.850 | 5 | J33 | M12*1.75P | ||
MTB3-J33-I | $8 | $0 | 114 | 86 | 28 | 23.825 | 15.850 | 5 | J33 | 1/2″-13UNC | ||
MTB3-B10 | $8 | $0 | 107 | 86 | 21 | 23.825 | 10.094 | 5 | B10 | M12*1.75P | ||
MTB3-B10-I | $8 | $0 | 107 | 86 | 21 | 23.825 | 10.094 | 5 | B10 | 1/2″-13UNC | ||
MTB3-B12 | $8 | $0 | 111 | 86 | 25 | 23.825 | 12.065 | 5 | B12 | M12*1.75P | ||
MTB3-B12-I | $8 | $0 | 111 | 86 | 25 | 23.825 | 12.065 | 5 | B12 | 1/2″-13UNC | ||
MTB3-B16 | $8 | $0 | 118 | 86 | 32 | 23.825 | 15.733 | 5 | B16 | M12*1.75P | ||
MTB3-B16-I | $8 | $0 | 118 | 86 | 32 | 23.825 | 15.733 | 5 | B16 | 1/2″-13UNC | ||
MTB3-B18 | $8 | $0 | 126 | 86 | 40 | 23.825 | 17.780 | 5 | B18 | M12*1.75P | ||
MTB3-B18-I | $8 | $0 | 126 | 86 | 40 | 23.825 | 17.780 | 5 | B18 | 1/2″-13UNC | ||
MTB3-B22 | $8 | $0 | 135 | 86 | 49 | 23.825 | 21.793 | 5 | B22 | M12*1.75P | ||
MTB3-B22-I | $8 | $0 | 135 | 86 | 49 | 23.825 | 21.793 | 5 | B22 | 1/2″-13UNC | ||
MTB3-B24 | $8 | $0 | 145 | 86 | 59 | 23.825 | 23.825 | 5 | B24 | M12*1.75P | ||
MTB3-B24-I | $8 | $0 | 145 | 86 | 59 | 23.825 | 23.825 | 5 | B24 | 1/2″-13UNC | ||
MTB4-J2 | $11 | $0 | 134 | 109 | 25 | 31.267 | 14.199 | 6.5 | J2 | M16*2.0P | ||
MTB4-J2-I | $11 | $0 | 134 | 109 | 25 | 31.267 | 14.199 | 6.5 | J2 | 5/8″-11UNC | ||
MTB4-J3 | $11 | $0 | 143 | 109 | 34 | 31.267 | 20.599 | 6.5 | J3 | M16*2.0P | ||
MTB4-J3-I | $11 | $0 | 143 | 109 | 34 | 31.267 | 20.599 | 6.5 | J3 | 5/8″-11UNC | ||
MTB4-J4 | $11 | $0 | 154 | 109 | 45 | 31.267 | 28.599 | 6.5 | J4 | M16*2.0P | ||
MTB4-J4-I | $11 | $0 | 154 | 109 | 45 | 31.267 | 28.599 | 6.5 | J4 | 5/8″-11UNC | ||
MTB4-J5 | $11 | $0 | 159 | 109 | 50 | 31.267 | 35.890 | 6.5 | J5 | M16*2.0P | ||
MTB4-J5-I | $11 | $0 | 159 | 109 | 50 | 31.267 | 35.890 | 6.5 | J5 | 5/8″-11UNC | ||
MTB4-J6 | $11 | $0 | 137 | 109 | 28 | 31.267 | 17.170 | 6.5 | J6 | M16*2.0P | ||
MTB4-J6-I | $11 | $0 | 137 | 109 | 28 | 31.267 | 17.170 | 6.5 | J6 | 5/8″-11UNC | ||
MTB4-J33 | $11 | $0 | 137 | 109 | 28 | 31.267 | 15.850 | 6.5 | J33 | M16*2.0P | ||
MTB4-J33-I | $11 | $0 | 137 | 109 | 28 | 31.267 | 15.850 | 6.5 | J33 | 5/8″-11UNC | ||
MTB4-B10 | $11 | $0 | 130 | 109 | 21 | 31.267 | 10.094 | 6.5 | B10 | M16*2.0P | ||
MTB4-B10-I | $11 | $0 | 130 | 109 | 21 | 31.267 | 10.094 | 6.5 | B10 | 5/8″-11UNC | ||
MTB4-B12 | $11 | $0 | 134 | 109 | 25 | 31.267 | 12.065 | 6.5 | B12 | M16*2.0P | ||
MTB4-B12-I | $11 | $0 | 134 | 109 | 25 | 31.267 | 12.065 | 6.5 | B12 | 5/8″-11UNC | ||
MTB4-B16 | $11 | $0 | 141 | 109 | 32 | 31.267 | 15.733 | 6.5 | B16 | M16*2.0P | ||
MTB4-B16-I | $11 | $0 | 141 | 109 | 32 | 31.267 | 15.733 | 6.5 | B16 | 5/8″-11UNC | ||
MTB4-B18 | $11 | $0 | 149 | 109 | 40 | 31.267 | 17.780 | 6.5 | B18 | M16*2.0P | ||
MTB4-B18-I | $11 | $0 | 149 | 109 | 40 | 31.267 | 17.780 | 6.5 | B18 | 5/8″-11UNC | ||
MTB4-B22 | $11 | $0 | 158 | 109 | 49 | 31.267 | 21.793 | 6.5 | B22 | M16*2.0P | ||
MTB4-B22-I | $11 | $0 | 158 | 109 | 49 | 31.267 | 21.793 | 6.5 | B22 | 5/8″-11UNC | ||
MTB4-B24 | $11 | $0 | 168 | 109 | 59 | 31.267 | 23.825 | 6.5 | B24 | M16*2.0P | ||
MTB4-B24-I | $11 | $0 | 168 | 109 | 59 | 31.267 | 23.825 | 6.5 | B24 | 5/8″-11UNC | ||
MTB5-J2 | $24 | $0 | 161 | 136 | 25 | 44.399 | 14.199 | 6.5 | J2 | M20*2.5P | ||
MTB5-J2-I | $24 | $0 | 161 | 136 | 25 | 44.399 | 14.199 | 6.5 | J2 | 3/4″-10UNC | ||
MTB5-J3 | $24 | $0 | 170 | 136 | 34 | 44.399 | 20.599 | 6.5 | J3 | M20*2.5P | ||
MTB5-J3-I | $24 | $0 | 170 | 136 | 34 | 44.399 | 20.599 | 6.5 | J3 | 3/4″-10UNC | ||
MTB5-J4 | $24 | $0 | 181 | 136 | 45 | 44.399 | 28.599 | 6.5 | J4 | M20*2.5P | ||
MTB5-J4-I | $24 | $0 | 181 | 136 | 45 | 44.399 | 28.599 | 6.5 | J4 | 3/4″-10UNC | ||
MTB5-J5 | $24 | $0 | 186 | 136 | 50 | 44.399 | 35.890 | 6.5 | J5 | M20*2.5P | ||
MTB5-J5-I | $24 | $0 | 186 | 136 | 50 | 44.399 | 35.890 | 6.5 | J5 | 3/4″-10UNC | ||
MTB5-J6 | $24 | $0 | 164 | 136 | 28 | 44.399 | 17.170 | 6.5 | J6 | M20*2.5P | ||
MTB5-J6-I | $24 | $0 | 164 | 136 | 28 | 44.399 | 17.170 | 6.5 | J6 | 3/4″-10UNC | ||
MTB5-J33 | $24 | $0 | 164 | 136 | 28 | 44.399 | 15.850 | 6.5 | J33 | M20*2.5P | ||
MTB5-J33-I | $24 | $0 | 164 | 136 | 28 | 44.399 | 15.850 | 6.5 | J33 | 3/4″-10UNC | ||
MTB5-B16 | $24 | $0 | 168 | 136 | 32 | 44.399 | 15.733 | 6.5 | B16 | M20*2.5P | ||
MTB5-B16-I | $24 | $0 | 168 | 136 | 32 | 44.399 | 15.733 | 6.5 | B16 | 3/4″-10UNC | ||
MTB5-B18 | $24 | $0 | 176 | 136 | 40 | 44.399 | 17.780 | 6.5 | B18 | M20*2.5P | ||
MTB5-B18-I | $24 | $0 | 176 | 136 | 40 | 44.399 | 17.780 | 6.5 | B18 | 3/4″-10UNC | ||
MTB5-B22 | $24 | $0 | 185 | 136 | 49 | 44.399 | 21.793 | 6.5 | B22 | M20*2.5P | ||
MTB5-B22-I | $24 | $0 | 185 | 136 | 49 | 44.399 | 21.793 | 6.5 | B22 | 3/4″-10UNC | ||
MTB5-B24 | $24 | $0 | 195 | 136 | 59 | 44.399 | 23.825 | 6.5 | B24 | M20*2.5P | ||
MTB5-B24-I | $24 | $0 | 195 | 136 | 59 | 44.399 | 23.825 | 6.5 | B24 | 3/4″-10UNC |
MTB1, MTB2, MTB3, MTB4 and MTB5 shanks, no tang — drawbar retention
Drawbar thread by size: M6x1.0, M10x1.5, M12x1.75, M16x2.0, M20x2.5
Imperial (-I) option: UNC drawbar thread on 49 of the 108 SKUs
14 chuck ends: B10, B12, B16, B18, B22, B24 and JT0-JT6, JT33
108 shank-to-chuck combinations — a direct replacement for a worn arbor
Shank gauge diameter 12.065-44.399mm, taper length 57-136mm
Overall length 71-195mm
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