Groz 03521 Center Square – 1.5" Work Diameter | Precision Machinist Tool for Locating Center of Round Stock | Hardened Spring Steel Knife Edge

Product Information

About

PRECISION CENTER MARKING TOOL – The Groz Center Square enables a machinist on a lathe or tool maker at a bench to locate the center of a round stock or part quickly and easily.
SPRING STEEL KNIFE EDGE – Features a finely crafted knife edge made from high-quality spring steel for reliable scribing and long-term use.
HARDENED & GROUND FOR ACCURACY – The blade is hardened and precisely ground to ensure extended service life and consistent performance.
1.5" WORK DIAMETER – Has 1.5-inch work diameter, making it perfect for small-scale precision machining tasks.
EASY CENTER-FINDING METHOD – Place the vee of the square on the round stock, scribe a line along the knife edge, rotate the square and repeat process. The intersection point of the lines is the true center.

Product Description

Locating the exact center of round stock should not slow your job down. The Groz 03521 Center Square gives machinists, toolmakers, and hobbyists a fast, dependable way to scribe a true centerline on cylindrical workpieces up to 1.5" in diameter.The self-centering V-jaw seats squarely against the round stock while a precision-ground knife-edge blade lays down a crisp scribe line every time, in one step. Built from hardened spring steel, the body and blade resist flex, nicks, and wear so reference surfaces stay accurate through years of shop use.Sized specifically for small and mid-diameter work, the 03521 is right at home on the bench, at the lathe, or in the toolbox alongside your combination square and surface gauge. Use it to set up drilling, turning, threading, milling, and layout operations on shafts, dowels, bar stock, and small cylindrical parts.