HomeProductsEIKOCB(E) CB(E)Counterbore with Straight Shank 0~-0.05 +0.2~0* For counterbore holes for hex socket head bolts.For detailed sizes, please click to download.▶️ Download Category: EIKORelated products CSSPSCR Read more SPR Read more PR(E) Read more LHR(E) Read more