HHIP 3900-5227 BXA Series No. 5-Morse Taper Holder for Drilling, MT2 Taper Hole Go to amazon.com Related posts How to buy the best boring head mt2? FeatureBrand: HHIPPart Number: 3900-5227No. 5-Morse Taper holder for drilling DescriptionHHIP no. 5-Morse taper holder for drilling. Product specifications: Series: bxa; taper hole: mt 2; a (inch): 7/8; b: 1-3/4.