Large industrial block brush with densely filled, anti-static, soft horsehair bristle and a static-neutral hardwood handle. This multi-purpose brush has a 6 x 19 row configuration, with a 3/4" trim, and a brush face of 6-5/8" x 1-7/8". Wood block handle is 7-1/8" x 2-1/4". This large flat scrub brush is very effective at reworking large printed circuit boards, or for general cleaning over larger surfaces. For a shorter trim horsehair bristle large block brush see part # 426HH-ST.