Chicago-latrobe 69050 Jobber Drill Bit No 50 Hss 135

Product Description

The CHICAGO-LATROBE 69050 is a jobber length drill bit designed for precision drilling in steel alloy and similar ferrous materials. Built from high speed steel with a bright uncoated finish, this Series 150DH bit measures 0.0700 inches in diameter and 2 inches overall length. The 135-degree split point reduces walking and requires no center punch on most surfaces. The parabolic flute geometry clears chips efficiently during deep drilling passes, making this bit well suited for production and maintenance drilling in metal fabrication, mechanical, and industrial service work.

This bit is intended for right-hand cutting applications in steel alloy workpieces. The straight-cylindrical shank seats securely in standard three-jaw drill chucks found on benchtop drill presses, handheld power drills, and CNC drilling equipment. The 1-inch flute length accommodates through-drilling in light-gauge stock at No. 50 wire gauge diameter. It is commonly used by machinists, maintenance technicians, and trade professionals who require small-diameter precision bits for tapping prep, pilot holes, and fine detail drilling.

Key Features

• No. 50 wire size, 0.0700-inch diameter with a diameter tolerance of -0.0005 to 0.0000 inches
• 135-degree split point reduces thrust and eliminates center punch requirement on most workpieces
• Parabolic flute design accelerates chip evacuation in deep or interrupted cuts
• Web-thinned tapered web construction reduces cutting resistance on entry
• High speed steel construction rated for heavy-duty drilling in steel alloy
• Bright uncoated finish — compatible with a wide range of cutting fluids and lubricants

Compatibility

Designed as a jobber length drill bit for use in standard straight-shank drill chucks rated for small-diameter bits in the 0.0500 to 0.1000 inch range. Suitable for drill presses, hand drills, and compatible CNC equipment accepting straight-cylindrical shanks.

Installation Notes

Install and remove drill bits only with the drill unpowered and the chuck key fully removed before starting. Secure the shank fully in the chuck and verify concentricity before drilling at speed. Use an appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain dimensional accuracy. Discard bits that show visible tip damage, as a compromised split point will produce oversized or off-location holes.