MT4 to MT3 Morse Taper Adapter Morse Center Sleeve 4MT to 3MT in Prime Quality
Outside Morse Taper 4. Inside Morse taper 3. We also have other size of morse center sleeves For Sale: MT2-1, MT3-1, MT3-2, Mt4-2, MT4-3, MT5-2, MT5-3, MT5-4, MT6-3, MT6-4, and MT6-5. Run out: 0.0001".