Value Collection 100261SR Single Flute Gun Drill Bit 3/8 in

Product Description

The VALUE COLLECTION 100261SR is a single-flute gun drill bit engineered for deep-hole drilling in demanding metalworking applications. Built with a carbide-tipped construction and a bright/uncoated finish, this bit delivers clean, accurate holes in tough materials including Inconel, stainless steel, and carbon steel. The 3/8 inch drill diameter holds a tight tolerance of plus 0.0005 to minus 0.0005 inches, ensuring precise bore sizing. At 10 inches overall length with a 6 inch flute length, this bit is suited for deep-reach applications where standard twist drills fall short. It is typically installed by machinists and tool-and-die professionals in CNC or manual deep-hole drilling setups.

This gun drill bit is designed for metalworking and multipurpose drilling operations, particularly in production environments requiring consistent hole depth and straightness in hard or high-temperature alloys. The through-coolant capability via a round coolant hole allows cutting fluid delivery directly to the tip, reducing heat buildup and chip evacuation issues during deep cuts. The 3/4 inch shank diameter accepts standard gun drill holders and deep-hole drilling fixtures. Right-hand cutting direction is standard for conventional spindle rotation on most machining centers and dedicated gun drilling machines.

Key Features

• Carbide-tipped construction for cutting Inconel, stainless steel, and steel
• Through-coolant support via round coolant hole for thermal management during deep cuts
• Tight drill diameter tolerance of plus 0.0005 to minus 0.0005 inches for accurate bore sizing
• 115-degree point angle with N-8 Nosegrind point type for controlled entry and reduced thrust
• Web-thinned geometry reduces cutting resistance and improves chip flow in deep holes
• R-1 Low Land contour style minimizes friction along the bore wall

Compatibility

Designed for use in metalworking and multipurpose drilling applications involving Inconel, stainless steel, and steel. The 3/4 inch shank diameter fits standard gun drill holders and deep-hole drilling machine spindles configured for that shank size.

Installation Notes

Gun drill bits of this type are installed and operated by machinists on dedicated gun drilling machines or CNC machining centers with appropriate deep-hole drilling fixtures. Before mounting, verify spindle speed and feed rate recommendations for the target material and ensure the coolant system is primed and delivering fluid through the bit. Secure the shank fully in the holder to the rated drive length before engaging the spindle. Never exceed the depth-of-cut rating of the holder or machine setup, and inspect the cutting tip for wear or chipping before each use.