We offer various High Speed Mandrels to satisfy all laboratory needs. Here are the following mandrels we provide:A: Mandrel, Corkscrew 3/32″ ShankB: Tapered Handpiece MandrelC: Mandrel 3/32″ Shank, 1/16″ Screw 8mm large headD: Mandrel, Heavy Duty. 1/8″ Shank, 1/16″ ScrewE: Mandrel, Spiral 3/32″ ShankF: Mandrel, Spiral w/Hex Nut 3/32″ ShankG: Mandrel, Heavy Duty 1/8″ Shank, 1/8″ ScrewH” Mandrel, H/P/ High Speed Reinforced 3/32″ Shank, 1/16″ Screw Available by the dozen or gross.