816D Prick Punch, 5/32 816 Prick Punches and SET Steel Prick Punch, 4"/100mm Length, 5/32"/4mm Diameter Tapered Point The Starrett 816 are the punches to use when precise positioning of a point or an intersection of lines is required. The points are carefully ground to the correct taper, which is sharper than the normal center punch. This allows exact placement of the point, providing sharp impressions. 4" (100mm) Length, 5/32" (4mm) Dia. Point. FEATURES Precision Centered Tips for Accuracy Knurled Grip for secure holding For precise positioning of a point or intersecting of lines Points are carefully ground to the correct taper, which is sharper than the normal center punch Hardened and Tempered Made of specially selected steel SPECIFICATIONS Made in America: Yes Length (in): 4" Length (mm): 100mm Diameter Tapered Point (in): 5/32" Diameter Tapered Point (mm): 4mm Material: Steel