Value Collection 01292556 Screw Machine Drill Bit 4.20mm Hss

Product Description

The VALUE COLLECTION 01292556 is a screw machine length drill bit designed for general-purpose drilling in metal, wood, and similar materials. Built from high-speed steel (HSS) with an oxide finish, this bit delivers reliable performance in production and maintenance environments. The 118-degree standard point angle provides clean entry and self-centering behavior on flat stock. At 4.20 mm in diameter and 55.00 mm overall length (approximately 2.17 inches), this is a stub-length bit optimized for rigidity and reduced deflection in short-reach drilling applications. It is suitable for use in drill presses, CNC machines, and handheld power tools. Licensed trades and machinists routinely rely on this bit geometry for high-cycle production work.

This screw machine drill bit is used in light manufacturing, HVAC fabrication shops, plumbing rough-in, electrical panel work, and general metal fabrication where short overall length reduces vibration and chatter. The straight cylindrical shank is compatible with standard drill chucks and collet holders. Its compact stub-length profile makes it well suited for confined-space drilling where a jobber-length bit would be impractical.

Key Features

• 4.20 mm diameter with 118-degree standard point angle for general-purpose drilling
• High-speed steel construction with oxide coating for basic wear and corrosion resistance
• Screw machine (stub) length at 55.00 mm overall for maximum rigidity and reduced deflection
• Right-hand cutting direction with regular spiral flute for efficient chip evacuation
• Straight cylindrical shank fits standard drill chucks and collet systems
• Web-thinned design reduces thrust force required during drilling

Compatibility

Designed as a general-purpose replacement or replenishment bit for use with standard drill chucks accepting straight-cylindrical shanks in the 3.50 mm to 5.00 mm diameter range.

Installation Notes

This bit is installed and removed by a qualified machinist or tradesperson using a standard keyed or keyless drill chuck. Always secure the workpiece before drilling and verify the spindle is fully stopped before changing bits. Appropriate cutting fluid or lubricant is recommended when drilling ferrous metals to extend tool life. Follow shop safety procedures and applicable OSHA guidelines when operating drilling equipment.