Forney 60121 Tungsten Carbide Burr with 1/4" Shank, 3/8" Cylindrical, SA-3 Trending_Items Outside diameters are the same

Outside diameters are the same as copper tube

and the all ball bearing design and metal gear housing deliver added durability

It covers up to 16

"SQUARE D QO" SINGLE POLE CIRCUIT BREAKER

Forney 60121 Tungsten Carbide Burr with 1/4" Shank, 3/8" Cylindrical, SA-3 Trending_Items Outside diameters are the sameShank mounted tungsten carbide burr is double cut for fine work. Designed for use on ferrous metals, plastic, fiberglass and other machinable materials. Ideal for deburring, sculpting and removing material in hard to reach areas. Designed for use with high speed die grinders like Forney model #1993. 3 8" Cylindrical (SA 3) 1 4" shank Max RPM: 70,000 Designed for use on ferrous metals, plastic, fiberglass, and other machinable materials Great for