Value Collection 01359017 Letter a Screw Machine Drill Bit Hss

Product Description

The VALUE COLLECTION 01359017 is a screw machine length drill bit designed for general-purpose drilling in metal, plastic, and similar materials. Built from high-speed steel (HSS) with an oxide coating for added surface hardness and lubricity, this bit features a 118-degree standard point angle and a right-hand cutting direction. The web-thinned parallel web reduces thrust during entry, making starts cleaner and reducing the need for a center punch on many applications. At 2.4375 inches overall length, the stubby screw machine profile provides rigidity and is well suited for drill press, CNC, and turret lathe work where deflection must be minimized.

This bit fits residential and commercial machining and fabrication applications. Letter size A corresponds to a decimal diameter of 0.2340 inches, placing it in the 0.2000 to 0.2500 inch size range. It is commonly used when a specific clearance or tap-drill diameter falls between standard fractional sizes. Machinists, tool-and-die technicians, and maintenance mechanics typically reach for screw machine length bits when working in tight setups or when the shorter flute length provides enough cutting depth for the application at hand.

Key Features

• Letter A size: 0.2340 inches decimal diameter for precise non-fractional hole sizing
• 118-degree standard point angle suits a broad range of general-purpose materials
• HSS construction with oxide coating for improved surface hardness and chip flow
• Web-thinned parallel web reduces drilling thrust and improves bite on entry
• Right-hand cut, regular spiral flute with straight cylindrical shank for standard chuck compatibility
• Screw machine (stub) length delivers extra rigidity compared to jobber-length bits

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with any standard three-jaw drill chuck accepting a straight cylindrical shank in the 0.2340-inch diameter range, including drill presses, CNC machining centers, turret lathes, and hand-held power drills.

Installation Notes

Installation and use should be performed by machinists or qualified maintenance personnel familiar with rotating cutting tools. Secure the straight shank fully in a properly sized chuck and verify the bit runs true before applying feed pressure. Always wear eye protection and keep hands clear of the cutting zone during operation. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed, as a compromised edge increases thrust and can cause workpiece damage or bit breakage.