Cle-line C18107 No. 54 Hss Jobber Drill Bit 135 Deg

Product Description

The CLE-LINE C18107 is a No. 54 wire gauge jobber-length drill bit designed for high-performance drilling in steel and cast iron. Built from high speed steel (HSS) with a black and gold oxide coating, this bit runs a 135-degree split point that reduces walking on entry and requires no center punch on most surfaces. At 1.875 inches overall length with a 0.875-inch flute length, the C18107 is sized for short-reach drilling tasks where a full jobber length is appropriate. Right-hand spiral flutes with a tapered web configuration promote efficient chip evacuation and help maintain cutting edge rigidity through the cut.

This drill bit is suited for metalworking applications in maintenance, repair, and light manufacturing environments. It performs in steel and cast iron workpieces, making it a practical choice for HVAC, plumbing, and electrical tradespeople drilling pilot holes, clearance holes, and access holes through ferrous sheet metal, brackets, and structural members. The No. 54 wire gauge diameter (0.0550 inches) is commonly used for tapping undersized holes and precision clearance work. The straight cylindrical shank fits standard drill chucks without an adapter.

Key Features

• 135-degree split point reduces bit walking and eliminates the need for center-punching on most materials
• High speed steel construction rated for heavy-duty drilling in steel and cast iron
• Black and gold oxide coating reduces friction and provides light corrosion resistance during storage
• Regular right-hand spiral flute promotes effective chip clearance in blind and through holes
• Tapered web configuration adds rigidity and extends cutting edge life
• Meets ASME B94.11M and DIN 338 standards for dimensional accuracy and performance

Compatibility

Designed as an OEM-style replacement or direct-use jobber drill bit compatible with any standard drill chuck accepting a 0.0550-inch straight cylindrical shank. Primary workpiece materials are steel and cast iron per Series 1878 specifications.

Installation Notes

This bit is installed by a machinist, maintenance technician, or trade professional using a standard keyed or keyless drill chuck. Secure the straight shank fully in the chuck before operation and confirm runout is within acceptable limits. Use appropriate cutting fluid or coolant when drilling steel at sustained depths to prevent heat buildup and premature edge wear. Coolant-through is not supported on this bit.