Irwin 1882793 Countersink Bit Set, Specifications: 1/4 in Shank, HSS, Includes: #6, #8, #10 Countersinks tools--07-20-26 Heavy-duty aluminum frame assures durability

Heavy-duty aluminum frame assures durability and accuracy

Separate Hi/Low measurement scales

In just one-application

large diameter soldering

Our ratchet and socket set is backed by our lifetime guarantee

Irwin 1882793 Countersink Bit Set, Specifications: 1/4 in Shank, HSS, Includes: #6, #8, #10 Countersinks tools--07-20-26 Heavy-duty aluminum frame assures durabilityTapered drill with widened flutes for drilling fast, clean pilot holes. Adjustable four cutter counterbore cuts and clears chips quicker for fast, smooth counter sinking. Counterbore attaches to flats on shank with two hex screws for a secure fit and can be adjusted for controlled pilot hole depth. 1 4 in quick change shank reduces slipping in standard chucks and is compatible with all 1 4 in quick change chucks, including impact drills. Set includes