Hertel 61698726 Screw Machine Drill Bit 7/64 in Hss

Product Description

The HERTEL 61698726 is a screw machine length drill bit designed for high-speed drilling in metal, wood, and general-purpose materials. Built from high-speed steel with an oxide finish, this bit measures 7/64 inches in diameter (0.1094 inches decimal) and features a 118-degree standard point angle for reliable centering and penetration. At 1-13/16 inches overall length, the stub-style body provides extra rigidity compared to jobber-length bits, reducing deflection and improving hole accuracy in short-reach applications. Two spiral flutes with a regular helix evacuate chips efficiently. Licensed trades and machining professionals rely on this geometry for production drilling where rigidity and repeatability matter.

This drill bit is suited for light-duty production and maintenance drilling tasks across HVAC, plumbing, electrical, and general metalworking applications. The screw machine length profile makes it a practical choice for drill press work, CNC setups, and hand-drill applications where a shorter bit body improves control. The right-hand cut and straight cylindrical shank are compatible with standard drill chucks in 3-jaw and keyed configurations. Coolant-through is not supported on this bit, so it is best used with external cutting fluid when drilling ferrous materials at higher cycle counts.

Key Features

• High-speed steel construction with oxide coating for corrosion resistance and reduced friction
• 118-degree standard point angle for accurate starting on flat surfaces
• Screw machine length body (1-13/16 inches OAL) provides greater rigidity than jobber-length equivalents
• Two spiral flutes with regular helix for effective chip evacuation
• Right-hand cut with straight cylindrical shank fits standard drill chucks
• General purpose grade covers a decimal inch range of 0.1000 to 0.1500 inch applications

Compatibility

Designed as a general-purpose replacement or stock drill bit for any standard drill chuck accepting a straight cylindrical shank in the 7/64 inch diameter class.

Installation Notes

This bit is installed by a machinist, maintenance technician, or licensed trade professional using a keyed or keyless drill chuck. Secure the straight shank fully in the chuck before operation and confirm there is no runout before drilling. Apply cutting fluid when drilling ferrous metals to extend tool life and improve hole finish. Replace the bit if the cutting edge shows visible chipping or if thrust force increases noticeably during normal operation.