Cleveland C47571 1/8" Carbide 118° Jobber Drill Bit

1/8" Solid Carbide Jobber Drill

The Cleveland C47571 is a fractional-inch jobber drill bit made from solid carbide with a bright uncoated finish. It features a 118-degree split point and right-hand cutting direction for general-purpose drilling. The overall length is 2-1/4 inches with a flute length of 1-1/4 inches. It conforms to ASME B94.11M-1993 standards and offers a 4xD depth-to-diameter ratio.

Machinists needing rigid carbide tooling

This bit suits machinists drilling abrasive or hardened materials where high-speed steel wears too quickly. The solid carbide construction provides rigidity for precise holes in tough alloys. It is not for users who need coolant-through capability for deep-hole chip evacuation. Builders requiring coated tools for extended life in high-heat applications should look elsewhere.

1/8" diameter with 4xD drilling depth

The 0.1250-inch diameter handles shallow holes up to roughly half an inch deep in a single pass. The 1-1/4 inch flute length clears chips effectively within this range. It runs out when holes exceed the 4xD ratio or when coolant-through delivery becomes necessary for deeper cuts. The uncoated finish limits tool life in sustained high-temperature operations.