Precision Twist Drill 6002378 Jobber Drill Bit 3.3mm

Product Description

The PRECISION TWIST DRILL 6002378 is a jobber-length drill bit designed for general-purpose drilling in metal and hard materials. It measures 3.3 mm (0.1299 inches) in diameter with a 57 mm (2.24 inches) overall length and a 32 mm (1.26 inches) flute length. The bit is manufactured from high-speed steel with a bright, uncoated finish and features a 118-degree standard point angle with web thinning for reduced thrust on entry. The straight-cylindrical shank and right-hand spiral flutes make it compatible with standard keyless and keyed drill chucks used by machinists, maintenance technicians, and metalworking professionals.

This bit is suited for drilling into steel, stainless steel, cast iron, non-ferrous metals, and hard materials in production and maintenance applications. It falls within the D33M series and covers the 3.00 mm to 4.00 mm diameter range, making it a go-to choice for precision hole work on fabricated components, structural steel, and machine parts. It is intended for use in stationary drill presses and handheld electric drills where consistent, repeatable hole diameter is required.

Key Features

• 118-degree standard point angle for accurate starting on metal surfaces
• Web-thinned tip reduces cutting resistance and feed pressure
• High-speed steel construction handles steel, stainless steel, cast iron, and non-ferrous metals
• Tapered web configuration with regular spiral flutes for efficient chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapters
• Right-hand cut with two flutes for general-purpose through-hole and blind-hole drilling

Compatibility

Designed as a general-purpose jobber-length drill bit in the D33F-D33W-D33L-D33M series, suitable for use with any standard drill chuck accepting a 3.3 mm straight shank. Compatible with workpiece materials coded P (steel), M (stainless steel), K (cast iron), N (non-ferrous metal), and H (hard material).

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard keyed or keyless drill chuck. Secure the shank fully into the chuck before applying power, and verify chuck tightness to prevent bit slippage. Use appropriate cutting fluid or coolant on stainless steel and hard materials to extend tool life, noting that this bit does not support internal coolant through. Ensure spindle speed is matched to material and diameter per standard machining feeds-and-speeds references before drilling.