1-1/8" X 7/16" Pilots for Counterbore Quantity:1 Part Number DWT60885

Part Number DWT60885

The teeth are hardened to 45–50 HRC and should not chip or strip even on fasteners up to Grade 8 or Class 12

Style Shell Reamer Arbor

Part Number: Assortment Kit #641324 Pieces

Part Number: Assortment Kit #135

1-1/8" X 7/16" Pilots for Counterbore Quantity:1 Part Number DWT60885Product Description 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 counterbores are made of two piece construction, having an integral shank and