Irwin IR60521 Hss Jobber Drill Bit 21/64 in 118 Deg

Product Description

The IRWIN IR60521 is a high speed steel jobber-length drill bit designed for general-purpose drilling in metal, wood, and plastic. It features a 118-degree standard point angle for fast starting without a center punch on most materials. The straight shank fits standard 3-jaw drill chucks on corded and cordless drills as well as drill presses. With an overall length of 4.625 inches and a flute length of 3.3125 inches, this bit falls within the standard jobber-length range used daily by electricians, plumbers, HVAC technicians, and pipefitters for hole-making in sheet metal, framing, and light structural work.

This bit is suited for residential and light commercial trade applications where a reliable, single-piece jobber drill bit is needed. Common install scenarios include drilling clearance holes for conduit, pipe hangers, sheet metal fasteners, and equipment mounting hardware. The 21/64-inch diameter makes it a practical choice for tapping holes, anchor bolt clearances, and similar field tasks across multiple trades.

Key Features

• 21/64-inch drill diameter for clearance and tapping applications
• 118-degree standard point angle for general-purpose material entry
• High speed steel (HSS) construction for durability across metal and wood substrates
• Straight shank compatible with standard 3-jaw drill chucks
• Jobber length provides a balance of reach and rigidity for everyday field use

Compatibility

Designed as a standard straight-shank jobber drill bit compatible with any 3-jaw keyed or keyless drill chuck sized to accept a 21/64-inch shank.

Installation Notes

Install and remove this bit with the drill or drill press unplugged or the battery removed. Secure the straight shank fully in the chuck before drilling and confirm the chuck is tightened on all three jaws. Use cutting fluid or cutting oil when drilling ferrous metals to extend bit life and reduce heat buildup. Dispose of worn bits per local sharps and metal waste guidelines.

Technical Specifications

• Drill Diameter: 21/64 inches
• Overall Length: 4.625 inches
• Flute Length: 3.3125 inches
• Point Angle: 118 degrees
• Point Type: Standard
• Shank Type: Straight
• Material: High Speed Steel (HSS)
• Length Type: Jobber
• UPC: 042526605215

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: IR60521