
BTT-MTA
MTA MORSE TAPER HOLDER-BTT
MT shank tool connection
Suitable for general milling and drilling
Dimensions
Comparison of size indication and detailed specifications

Order No. Order number | MT NO. | ∅d | ∅D | L | L1 |
---|---|---|---|---|---|
BT30(BTT30) MTA1-045 | 1 | 12.065 | 25 | 45 | 23 |
BT30(BTT30) MTA2-060 | 2 | 17.78 | 32 | 60 | 38 |
BT30(BTT30) MTA3-080 | 3 | 23.825 | 40 | 80 | 58 |
Order No. Order number | MT NO. | ∅d | ∅D | L | L1 |
---|---|---|---|---|---|
BT40(BTT40) MTA1-045 | 1 | 12.065 | 25 | 45 | 18 |
BT40(BTT40) MTA1-120 | 1 | 12.065 | 25 | 120 | 93 |
BT40(BTT40) MTA2-045 | 2 | 17.78 | 32 | 45 | 18 |
BT40(BTT40) MTA2-120 | 2 | 17.78 | 32 | 120 | 93 |
BT40(BTT40) MTA3-075 | 3 | 23.825 | 40 | 75 | 48 |
BT40(BTT40) MTA3-135 | 3 | 23.825 | 40 | 135 | 108 |
BT40(BTT40) MTA4-090 | 4 | 31.267 | 50 | 90 | 63 |
BT40(BTT40) MTA4-165 | 4 | 31.267 | 50 | 165 | 138 |
Order No. Order number | MT NO. | ∅d | ∅D | L | L1 |
---|---|---|---|---|---|
BT50(BTT50) MTA1-045 | 1 | 12.065 | 25 | 45 | 7 |
BT50(BTT50) MTA1-120 | 1 | 12.065 | 25 | 120 | 82 |
BT50(BTT50) MTA1-180 | 1 | 12.065 | 25 | 180 | 142 |
BT50(BTT50) MTA2-045 | 2 | 17.78 | 32 | 45 | 7 |
BT50(BTT50) MTA2-135 | 2 | 17.78 | 32 | 135 | 97 |
BT50(BTT50) MTA2-180 | 2 | 17.78 | 32 | 180 | 142 |
BT50(BTT50) MTA3-060 | 3 | 23.825 | 40 | 60 | 22 |
BT50(BTT50) MTA3-150 | 3 | 23.825 | 40 | 150 | 112 |
BT50(BTT50) MTA3-180 | 3 | 23.825 | 40 | 180 | 142 |
BT50(BTT50) MTA4-075 | 4 | 31.267 | 50 | 75 | 37 |
BT50(BTT50) MTA4-180 | 4 | 31.267 | 50 | 180 | 142 |
BT50(BTT50) MTA5-105 | 5 | 44.399 | 65 | 105 | 67 |
BT50(BTT50) MTA5-210 | 5 | 44.399 | 65 | 210 | 172 |
Remarks
- Application: MT shank tool connection
Precision Tool Holder Series Products
Deep hole machining・3μm high precision・Reduce tool loss
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Shrink Fit Chuck

Quick tool change within 10 seconds・3μm high precision
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Heavy cutting・5μm high precision・Super clamping torque
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