Jacobson Micro Needle Holder W/ Streamlined Box Lock - Tungsten Carbide Dusted JawsDDP Elite USA Jacobson Micro Needle Holder with streamlined box lock is made for use with 7 0 and 8 0 suture sizes in cardiothoracic surgical procedures that require suturing. Not only is there a rounded handle for increased comfort in gripping but also the jaws are infused with tungsten carbide dust which results in a supremely durable jaw and a secure grip without damaging the needles used in delicate procedures. This needle holder is available in a