Drill America DEWCBRTS1-7/16 1-7/16" X 3/8" Pilot Hole HSS Taper Shank Counterbore, DEWCBRTS1-7/16 Shop by Category>Measurement Great for Adding your Own

Great for Adding your Own Tips or Extensions

Chadwick & Trefethen 50205 20 Gauge Lfc Spiral Reamer

(909) 334-4400

Chadwick & Trefethen 61140 14mm Spiral Hand Expansion Reamer

timeless design of the Heavy Duty 89 Series will ensure a long

Drill America DEWCBRTS1-7/16 1-7/16" X 3/8" Pilot Hole HSS Taper Shank Counterbore, DEWCBRTS1-7/16 Shop by Category>Measurement Great for Adding your OwnDrill America DEWCBRTS1 7 16 1 7 16" X 3 8" Pilot Hole HSS Taper Shank Counterbore, DEWCBRTS1 7 16 Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1 8" or less), the operations is usually known as spot facing; for example, a flat seat for a bolt head or nut. If, on the other hand, the hole is enlarged to a considerable depth, it is designated as counterboring. These