Value Collection 526872 Half-round Drill Bit 0.025in Hss

Product Description

The VALUE COLLECTION 526872 is a half-round drill bit designed for precise deep hole drilling in brass and similar soft to medium machining metals. Ground from high-speed steel (HSS) with a bright uncoated finish, this bit features a 118-degree drill point angle and a straight flute geometry that aids chip evacuation in confined bores. The 0.025-inch diameter and 1-1/8-inch overall length make it suited for small-diameter work where a standard twist drill would deflect or chatter. Right-hand cutting direction is standard. This bit ships individually and is sold with a minimum order quantity of 12 units, making it practical for shop stock replenishment.

This bit is intended for metalworking applications, particularly deep hole drilling in brass stock, bar, tubing, and castings. Its half-round cross-section provides increased rigidity compared to a standard jobber bit at the same diameter, reducing walk on entry and improving hole straightness. Machinists, toolmakers, and production shop technicians working on small-bore brass components will find this geometry well matched to the application. It is compatible with drill presses, CNC machining centers, and hand-held power drills fitted with an appropriate chuck.

Key Features

• Half-round geometry for improved rigidity and reduced bit walk on small-diameter holes
• 0.025-inch diameter with a 118-degree drill point angle for clean entry in brass
• Straight flute design promotes chip evacuation during deep hole drilling
• High-speed steel construction provides wear resistance across moderate run rates
• Bright uncoated finish - no coating to spall or flake into the workpiece
• Right-hand cutting direction, compatible with standard drill press and CNC spindle rotation

Compatibility

Designed as an OEM-style replacement and production-use bit for metalworking applications involving brass and similar non-ferrous machining metals requiring a half-round drill bit in the 0.025-inch diameter range.

Installation Notes

Installation is performed by machinists and toolroom technicians using standard drill press or CNC equipment. Secure the bit firmly in the chuck or collet before operation and verify runout is within acceptable limits for the diameter. Power down and de-energize the machine fully before changing bits or adjusting workholding. At 0.025-inch diameter, feed rate and spindle speed must be carefully controlled to avoid bit breakage - consult published speeds-and-feeds references for HSS in brass before cutting.