Hertel C.4C0.0357 Taper Shank Drill Bit 9/64 in 1MT

Product Description

The HERTEL C.4C0.0357 is a taper shank drill bit designed for precision drilling in metal, wood, and general-purpose materials. It features a 9/64 inch (0.1406 inch decimal) diameter cutting edge and a 118-degree point angle, which is the standard geometry for general-purpose drilling across a wide range of workpiece materials. The 1MT (Morse Taper 1) shank seats directly into compatible taper-socket spindles on drill presses, lathes, and milling machines, eliminating the need for a separate chuck. Machinists, tool-and-die workers, and maintenance technicians are the primary users of this bit.

This bit is suited for use on benchtop and floor-standing drill presses, engine lathes, and machine tool spindles that accept a No. 1 Morse Taper shank. The 2.125 inch flute length provides adequate chip evacuation for hole depths typical in light production and maintenance drilling. The 5.375 inch overall length fits standard 1MT sockets without an adapter. Applications include through-hole drilling, spot drilling, and stepped-hole operations in job shop and maintenance environments.

Key Features

• 9/64 inch (0.1406 inch) cutting diameter for precise, small-diameter hole making
• 118-degree point angle — standard geometry for general-purpose drilling in ferrous and non-ferrous materials
• No. 1 Morse Taper (1MT) shank for direct, self-holding fit in compatible spindles
• 2.125 inch flute length supports chip clearance over moderate hole depths
• 5.375 inch overall length fits standard 1MT drill press and lathe sockets

Compatibility

Designed as a direct-fit replacement or standard addition for any machine tool spindle or drill press quill that accepts a No. 1 Morse Taper (1MT) socket.

Installation Notes

Installation is performed by machinists or maintenance technicians. Power down and lock out the machine before seating or removing the taper shank. Clean both the shank taper and the socket bore thoroughly before insertion — debris on either surface will prevent full seating and can cause runout. Drive the shank home with a firm upward push or soft mallet tap; use a drift key through the spindle slot to remove the bit safely. Never use the drill press quill feed handle to force a stuck taper loose while the spindle is powered.