Chicago-Latrobe 57850 550 NAS-Type Heavy-Duty Cobalt Straw Jobber-Length Drill Bit Set 29-Pc

Product Description

The Chicago-Latrobe 57850 is a 29-piece cobalt straw jobber-length drill bit set. This set offers a cutting diameter range from one-sixteenth of an inch to one-half of an inch. The bits are designed for heavy-duty use, making them suitable for tough materials.

• Manufactured to NAS 907 Type J geometry aerospace specifications
• Made from premium cobalt high-speed steel
• 135-degree P3 split point for reduced thrust and easier penetration

Product Highlights

This drill bit set is ideal for professionals needing durable and precise drilling tools. The straw finish enhances lubricity and distinguishes cobalt bits.

Product Information

Standard Information

• Manufacturer: Greenfield Industries Inc
• Country of Origin: US

Technical Specifications

• Cutting Diameter (Max): 1/2 inch
• Cutting Diameter (Min): 1/16 inch
• Includes: 29-Pc Drill Bit Sizes 1/16 inch to 1/2 inch x 1/64th
• Material: HSS-CO 8% (M42)
• Point Angle: 135 degrees RHS/RHC
• Shank Type: Straight
• Finish: Straw
• Weight: 7.2986
• Dimensions: 1.9685 x 4.2126 x 8.8583 inches