Titan Usa CD32631 Screw Machine Drill Bit Size 31 Cobalt

Product Description

The TITAN USA CD32631 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal fabrication and machining applications. Built from cobalt steel with a bright/uncoated finish, this bit handles tough workpiece materials including stainless steel, cast iron, and heat-resistant alloys. The 135-degree split point geometry reduces walking and requires no center punch in most setups. At 1-7/8 inches overall length, the stub-length body provides added rigidity and reduced deflection compared to jobber-length alternatives. This is a two-flute, right-hand spiral flute design with a straight cylindrical shank. It meets NAS 907 Type J specification and is rated heavy duty for demanding production environments. Licensed machinists, toolroom technicians, and industrial maintenance trades are the primary users.

This bit is suited for screw machine operations, turret lathe work, and drill press applications where short, rigid tooling is required. The 0.1200 inch diameter (wire size 31) fits within the 0.1000 to 0.1500 inch size range of this series. It is appropriate for production drilling in metal components where hole placement accuracy and tool life under repeated use are priorities. The stub length reduces chatter in short-reach setups and works well in multi-spindle and gang-drilling configurations.

Key Features

• Cobalt steel construction for heat resistance and extended tool life in hard metals
• 135-degree split point reduces thrust force and eliminates the need for center punching
• Screw machine (stub) length at 1-7/8 inches OAL for maximum rigidity and reduced deflection
• Two-flute right-hand spiral flute design for efficient chip evacuation
• Straight cylindrical shank compatible with standard drill chucks and collets
• Meets NAS 907 Type J specification for controlled manufacturing tolerance
• Heavy duty grade rating for production and industrial use

Compatibility

Designed as an OEM-style screw machine length drill bit replacement for applications requiring a 0.1200 inch (wire size 31) diameter, NAS 907 Type J compliant, cobalt stub-length drill bit with a straight cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom professionals familiar with rotating cutting tools. Secure the shank fully in the chuck or collet to the manufacturer-recommended depth before operating. Ensure the spindle and workpiece are properly fixtured and all guards are in place before starting the machine. Do not exceed the rated speed for the workpiece material and bit diameter as specified in standard machining reference tables.