Precision Twist Drill 5997002 No. 47 5/64 in Hss Drill Bit

Product Description

The PRECISION TWIST DRILL 5997002 is a No. 47 wire gauge, jobber-length drill bit designed for general-purpose drilling in metal and hard materials. Built from high-speed steel (HSS) with a bright uncoated finish, this bit features a 135-degree split point and a parabolic spiral flute pattern with web thinning for reduced thrust and cleaner entry. The straight cylindrical shank measures 5/64 inch (0.0785 inch decimal) in diameter with an overall length of 2 inches and a flute length of 1 inch. It cuts right-hand and is suited for use in standard drill chucks. HVAC technicians, plumbers, electricians, and general trade mechanics rely on this size for sheet metal, bracket, and conduit work requiring a small-diameter pilot or through-hole.

This bit is rated for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. The QC21P series targets heavy-duty general-purpose applications where a reliable HSS bit at a small diameter is needed. A 13xD flute-to-diameter ratio provides adequate chip evacuation for the 1-inch maximum drilling depth. No coolant-through feature is present, so conventional cutting fluid application at the workpiece is standard practice for harder substrates.

Key Features

• No. 47 wire gauge size, 5/64 inch diameter (0.0785 inch decimal) for precise small-hole work
• 135-degree split point reduces walking and lowers entry thrust on hard materials
• High-speed steel construction with bright uncoated finish for general-purpose durability
• Parabolic spiral flute with web thinning promotes chip clearance and reduces heat buildup
• Straight cylindrical shank fits standard drill chucks without adapters
• Conforms to ANSI standards; QC21P series heavy-duty grade

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a 5/64 inch straight cylindrical shank. Suitable for handheld drills, drill presses, and CNC drill applications.

Installation Notes

Installation and use should be performed by a qualified tradesperson familiar with rotary cutting tool safety. Secure the shank fully in the chuck and verify runout before drilling. Power down and disconnect the drill or machine before changing bits. Apply cutting fluid when drilling stainless steel, cast iron, or superalloys to extend tool life and reduce heat.