Precision Twist Drill 5997767 Cobalt Jobber Drill Bit 37

Product Description

The PRECISION TWIST DRILL 5997767 is a cobalt jobber-length drill bit in wire gauge size 37, equivalent to 0.1040 inches in diameter. Built for heavy-duty general-purpose drilling, it features a 135-degree split point with web thinning to reduce walking and lower thrust on entry. The straw oxide finish helps with chip evacuation and mild lubricity during drilling operations. With an overall length of 2.5 inches and a flute length of 1.4375 inches, this bit is suited for production and maintenance drilling tasks performed by machinists, metalworkers, and maintenance technicians working in metal fabrication and industrial repair environments.

This drill bit is designed for drilling in steel and a range of workpiece material categories including ferrous metals, cast materials, non-ferrous metals, and superalloys, as indicated by material codes P, M, K, N, and S. The right-hand cut and regular spiral flute geometry make it compatible with standard drill presses, hand drills, and CNC machining centers. It belongs to the Series R10CO-R15CO-R18CO and conforms to ANSI standards and NAS 907 specification. It is sold individually with a minimum order quantity of 12 units.

Key Features

• Cobalt high-speed steel construction for increased heat and wear resistance in hard metal applications
• 135-degree split point with web thinning reduces walking and decreases required feed force
• Straw oxide finish provides mild lubricity and corrosion resistance during use
• Regular spiral flute geometry at a 14xD flute-to-diameter ratio promotes efficient chip removal
• Straight cylindrical shank with zero flats fits standard drill chucks without modification
• Meets ANSI standards and NAS 907 specification for consistent dimensional accuracy

Compatibility

Designed as an OEM-style jobber drill replacement for applications requiring wire gauge size 37 (0.1040 inches) in the PRECISION TWIST DRILL Series R10CO-R15CO-R18CO. Suitable for use in steel, ferrous metals, non-ferrous metals, cast materials, and superalloys per material codes P, M, K, N, and S.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with drill press and hand-drill operation. Ensure the workpiece is securely fixtured before drilling, and use appropriate cutting fluid for ferrous metal applications to extend tool life. Always power down and de-energize the spindle before changing bits. Follow applicable shop safety standards and machine-specific operating procedures when setting feed rate and spindle speed.