Precision Twist Drill 5996081 Screw Machine Drill Bit

Product Description

The PRECISION TWIST DRILL 5996081 is a cobalt screw machine length drill bit designed for high-performance drilling in hard and tough materials. It measures 0.209 inches in diameter with an overall length of 2-3/8 inches and a flute length of 1-1/4 inches. The 135-degree split point reduces walking and requires no center punch on most surfaces. The web-thinned, tapered web construction lowers thrust and improves chip evacuation. This bit belongs to the Series M41CO and is built to ANSI standards. Machinists, tool-and-die professionals, and maintenance technicians reach for this bit when standard HSS tooling falls short on harder alloys.

The 5996081 is suited for screw machine applications and short-hole drilling operations where rigidity and accuracy matter. Its shorter body length provides greater stability in drill presses, CNC machining centers, screw machines, and turret lathes. The regular spiral flute with a 2.5xD flute-to-diameter ratio handles chip clearing efficiently across a range of ferrous and hard non-ferrous workpiece materials. Straight-cylindrical shank allows direct chucking in standard drill chucks and collets without adapters.

Key Features

• Cobalt (M41 grade) construction for heat resistance and durability in hard materials
• 135-degree split point for reduced thrust and self-centering entry
• Web-thinned tapered web lowers cutting resistance and improves chip flow
• Screw machine length body provides rigidity and minimizes deflection
• Right-hand cut with regular spiral flute for standard drilling operations
• Straight-cylindrical shank fits standard drill chucks and collets directly
• Meets ANSI standards for dimensional accuracy

Compatibility

Designed as an OEM-style replacement and direct-fit tooling option for screw machine drill bit applications requiring a 0.209-inch diameter in the 0.2000 to 0.2500 inch size range, Series M41CO, conforming to ANSI specification.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or tooling professional. Ensure the machine spindle is fully stopped and the chuck or collet is clean before seating the shank. Secure the bit firmly to prevent slippage under cutting load. Follow appropriate speeds and feeds for cobalt tooling based on workpiece material hardness and machine capability.