18PC HD Blk&Gld Jobber Drill and Plug Hand Tap Set CLE 1878 HSS, N36, N29, N25, N21, N7, F, 5/16, U, 27/64

The CLE-LINE - C21191 is a drill and tap set designed for drilling and tapping tasks. The set includes drill bits sized by fractional inch, letter, and wire measurement systems. The drill bits feature a split point tip type and are intended for right-hand cutting direction. This set has no internal coolant passages (non-coolant through), external cooling may be required depending on the material and drilling/tapping conditions. The bits have a black oxide machining finish and supports a depth-to-diameter ratio of 4xD, which indicates the maximum drilling depth relative to the bit diameter.

Key Features:

• Number of pieces: 18
• Drill bit sizes measured in fractional inch, letter, and wire systems
• Drill bit point type: Split point
• Cutting direction: Right hand
• Coolant fed: Non-coolant through (no internal coolant passages)
• Finish: Black oxide machining
• Depth-to-diameter ratio: 4xD