Value Collection 01-050 No. 50 Cobalt Jobber Drill Bit

Product Description

The VALUE COLLECTION 01-050 is a No. 50 wire-size jobber-length drill bit ground from cobalt high-speed steel and finished with a straw coating. It carries a 135-degree split point that self-centers on contact, reducing the need for a center punch and minimizing walking on hard or smooth surfaces. The 0.0700-inch cutting diameter and 2-inch overall length make it well suited for tight-clearance drilling applications. Two regular spiral flutes evacuate chips efficiently during the cut. This bit is intended for use in hand drills, drill presses, and CNC setups by machinists, maintenance technicians, and trade professionals who regularly work in demanding materials.

The 01-050 is engineered for drilling stainless steel and hardened materials where standard high-speed steel bits lose their edge prematurely. Cobalt construction provides elevated heat resistance, making it appropriate for work on structural stainless fastener holes, instrumentation panels, and similar applications where tool longevity under high cutting temperatures is a priority. The straight cylindrical shank seats directly into standard drill chucks without adapters. The 1-inch flute length supports a maximum drilling depth of 1 inch per pass without bit repositioning.

Key Features

• Cobalt construction for extended tool life in stainless steel and hardened materials
• 135-degree split point self-centers and reduces thrust pressure at entry
• Straw finish indicates heat-treated cobalt grade material
• Regular spiral flutes with 14xD flute-to-diameter ratio for consistent chip evacuation
• Straight cylindrical shank fits standard drill chucks without adapters
• Heavy-duty grade rated for general-purpose and demanding material drilling

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a 0.0700-inch straight shank, including hand drills, drill presses, and CNC machining centers.

Installation Notes

Secure the shank fully in the chuck and verify concentricity before beginning a cut. Use appropriate cutting fluid or coolant when drilling stainless steel or hardened materials to extend edge life and prevent work hardening. Do not exceed the recommended feed rate for cobalt bits in hard materials, as excessive pressure can chip the cutting edge. Wear appropriate eye protection and secure the workpiece before drilling.