Hertel H95006128 No. 29 Hss Jobber Drill Bit 137 Deg

Product Description

The HERTEL H95006128 is a No. 29 wire-size jobber-length drill bit designed for general-purpose holemaking in metal, wood, and composite materials. Built from high speed steel with an oxide and TiN coating, the bit delivers a decimal diameter of 0.136 inches and features a 137-degree split point that reduces walking and lowers the thrust needed to start a hole. The 2-flute, right-hand spiral configuration evacuates chips efficiently during through-hole and blind-hole operations. At 2.875 inches overall length with a 1.375-inch flute length, it fits standard drill chucks and drill press setups used in fabrication, maintenance, and production environments.

This drill bit is suited for machinists, maintenance technicians, fabricators, and metalworking professionals who require consistent hole geometry in light to medium stock removal tasks. The heavy-duty grade rating makes it appropriate for repetitive drilling cycles in production settings as well as one-off service applications. The split-point geometry is particularly useful when drilling harder ferrous materials where a conventional point would require center-punching before entry.

Key Features

• No. 29 wire size, 0.136-inch decimal diameter
• 137-degree split point reduces bit walking and entry thrust
• High speed steel construction with oxide and TiN coating for extended wear resistance
• Right-hand, 2-flute regular spiral for efficient chip evacuation
• Jobber-series length: 2.875 inches OAL, 1.375-inch flute length
• Heavy-duty grade rating; meets ANSI specification designation

Compatibility

Designed as a standard jobber-length drill bit compatible with any 3-jaw or keyless drill chuck accepting round-shank bits in the 0.100-inch to 0.150-inch diameter range.

Installation Notes

Installation is performed by machinists or maintenance technicians using a drill press, hand drill, or CNC spindle with an appropriate chuck capacity. Secure the shank fully in the chuck before operation and confirm the workpiece is clamped or fixtured to prevent movement. Use cutting fluid or coolant appropriate to the workpiece material to extend bit life, noting that this bit does not support internal coolant-through delivery. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point geometry is compromised.