Value Collection 01188556 No. 55 Hss Jobber Drill Bit

Product Description

The VALUE COLLECTION 01188556 is a No. 55 wire-size jobber-length drill bit ground from high speed steel (HSS) with an oxide finish for added lubricity and surface hardness. It carries a 118-degree standard point angle suited for general-purpose drilling in steel and cast iron. The straight cylindrical shank measures 0.0520 inches in diameter, matching the body diameter, and the overall length is 1.875 inches with a 0.875-inch flute length. The two-flute regular spiral geometry evacuates chips cleanly in short-hole applications. This bit is installed by machinists, tool-and-die technicians, HVAC service techs, electricians, and plumbers when precision small-diameter holes are required in ferrous materials.

This jobber drill is sized for wire-gauge No. 55, equivalent to 0.0520 inches (decimal), placing it in the 0.0500 to 0.1000 inch drill bit size range. It is well suited for tap drilling, pilot-hole work, and light production drilling in steel and cast iron in both shop and field service environments. The right-hand cutting direction and standard spiral type make it compatible with any conventional right-hand drill press, hand drill, or drill motor. The web-thinned, tapered web configuration reduces thrust at the cutting tip, which is especially useful at this small diameter where bit deflection and breakage are primary concerns.

Key Features

• No. 55 wire size — 0.0520 inch decimal diameter for precision small-hole work
• 118-degree standard point angle for general-purpose drilling in steel and cast iron
• High speed steel construction with oxide coating for improved lubricity and wear resistance
• Web-thinned, tapered web reduces thrust and minimizes breakage risk at small diameters
• Regular spiral, two-flute design promotes efficient chip evacuation in short holes
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber drill for use in steel and cast iron workpieces; fits any standard drill press, hand drill, or drill motor chuck capable of accepting a 0.0520-inch straight shank.

Installation Notes

This bit is installed by machinists and trade professionals using standard drill presses or hand drills — no special tooling is required beyond a compatible chuck. Secure the workpiece before drilling to prevent rotation and bit breakage at this small diameter. Apply cutting fluid when drilling ferrous materials to extend bit life and reduce heat buildup. Replace the bit at the first sign of dulling; small-diameter HSS bits are prone to sudden breakage when cutting forces increase.