Special spindle-like point extends into needle bearing supported shank. Double-row angular contact bearing in front (single row on 1, 2 and 3 Morse Taper). Permanently lubricated bearings. Accuracy: +-0.00005" Included point angle is 60 Degrees;+15'/-0. Bearings protected by a combination steel shield and neoprene seal. Thrust ball bearing to maximize axial load capacity. Point is high carbon alloy steel heat treated to Rc 61 - 63. Hardened body for extra strength, rigidity and long life. Bearing life significantly extended with the exclusive Royal Roto-Shield(TM).