Hertel C.40W.1270 Taper Length Drill Bit 1/2 in Hss

Product Description

The HERTEL C.40W.1270 is a taper length twist drill bit designed for metal drilling applications requiring greater reach than a jobber-length bit. Built from high-speed steel (HSS) with a black oxide finish, this bit handles ferrous metals, cast iron, and general-purpose materials commonly encountered in mechanical, HVAC, and plumbing fabrication work. The 118-degree point angle is the standard geometry for most metal drilling tasks. At 7.75 inches overall length with a 4.75-inch flute, it provides the depth access that standard-length bits cannot reach in deep-hole or stepped-component applications. The web-thinned, tapered web construction reduces thrust requirements and improves chip evacuation.

This drill bit is suited for use in hand-held drills, drill presses, and machine spindles where a straight-cylindrical shank is compatible. Trade professionals in HVAC, plumbing, and general mechanical work use taper length bits when drilling through structural members, deep flanges, or multi-layer assemblies where a jobber bit falls short. The right-hand spiral flute and standard point geometry make it a reliable general-purpose choice across a range of ferrous and non-ferrous base materials. Sold individually.

Key Features

• HSS construction provides heat resistance and edge retention for metal drilling
• Black oxide finish reduces friction and offers mild corrosion resistance
• 118-degree standard point angle suits general metal and multi-material applications
• Taper length body at 7.75 inches overall gives extended reach versus jobber-length bits
• Web-thinned tapered web lowers drilling thrust and improves chip clearance
• Right-hand cut spiral flute with straight-cylindrical 0.5-inch shank fits standard chucks

Compatibility

Designed as a straight-cylindrical shank drill bit compatible with any 1/2-inch or larger keyed or keyless chuck on hand drills, drill presses, and milling machines accepting a 0.5-inch shank diameter.

Installation Notes

Installation and use should be performed by qualified trade or machining personnel familiar with rotary cutting tools. Secure the workpiece firmly before drilling and ensure the chuck is fully tightened on the shank before operation. Center-punch the target location to prevent walking at startup. Wear appropriate eye protection and use cutting fluid on ferrous metals to extend bit life and manage heat buildup.