Value Collection 20919 Mechanics Drill Bit 23/64 in Hss

Product Description

The VALUE COLLECTION 20919 is a mechanics-length, high-speed steel drill bit designed for general-purpose drilling in metal and ferrous materials. It features a 23/64 inch (0.3594 inch decimal) diameter with a 135-degree split point that reduces walking on contact and requires no center punch on most surfaces. The Weldon flat shank with three flats provides a positive grip in compatible chucks, preventing slippage under torque. An oxide coating adds surface hardness and mild lubricity. Right-hand spiral flutes evacuate chips efficiently during through-hole and blind-hole drilling operations. Licensed machinists, tooling specialists, and maintenance technicians are the primary users of this bit.

This drill bit is suited for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel stock. The mechanics-length body — shorter than a jobber bit — improves rigidity and reduces deflection in constrained work envelopes such as engine bays, structural members, and machinery frames. The parallel web configuration and web-thinned geometry keep thrust forces manageable when working in production or maintenance settings.

Key Features

• 23/64 inch diameter (0.3594 inch decimal) for precise hole sizing
• 135-degree split point reduces thrust and eliminates center-punch requirement on most metal surfaces
• High-speed steel construction withstands elevated cutting temperatures in ferrous materials
• Weldon flat shank with three flats locks securely in compatible chucks to prevent rotation under load
• Oxide finish provides surface hardness and mild corrosion resistance
• Mechanics length (4-3/16 inch overall, 2-11/16 inch flute) delivers superior rigidity over jobber-length alternatives
• Web-thinned, parallel web design reduces cutting resistance and improves chip evacuation

Compatibility

Designed for use with drill presses, milling machines, and hand drills equipped with Weldon flat shank tool holders. Intended for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy steel, stainless steel, and general steel workpieces in general-purpose machining and maintenance applications.

Installation Notes

Secure the Weldon shank fully into the tool holder and tighten set screws against the flats before operation. Ensure the workpiece is firmly clamped or fixtured to prevent movement during drilling. Apply appropriate cutting fluid when drilling stainless steel or high alloy materials to extend tool life and reduce heat buildup. Inspect the cutting edges for wear or chipping before each use, and replace the bit if the split point shows signs of degradation.