Marson Drill Bit, Countersink, Marson D-120(0)No Reviews yet SKU: MAR-39101 $9.33 Qty: -+ Quantity discounts available QuantityPrice Add to Cart DetailsDetailsThis double-ended drill bit provides the correct size hole and angle for 1/8" diameter countersink rivets. Drilling and countersinking done in one operation. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review