Precision Twist Drill 6000548 Cobalt Jobber Drill 7.50mm

Product Description

The PRECISION TWIST DRILL 6000548 is a cobalt jobber-length drill bit designed for general-purpose drilling in steel and other demanding workpiece materials. Ground to a 135-degree split point, it starts on contact and reduces walking without a center punch. The oxide and bronze straw coating helps manage heat and light chip adhesion during the cut. At 4.2969 inches overall length with a 2.7188-inch flute, this bit covers standard jobber-reach applications in drill press, CNC, or hand-drill setups. It is sized at 7.50 mm diameter and carries a straight cylindrical shank for direct chuck mounting. Installation is handled by machinists, maintenance technicians, and metalworking tradespeople.

This bit is suited for production and MRO drilling in steel, cast iron, non-ferrous metals, and other materials corresponding to P, M, K, N, and S workpiece material codes per ISO designation. The 2-flute regular spiral design clears chips efficiently in through-hole and blind-hole drilling. Web thinning reduces thrust load, which is useful when drilling tougher alloys or thicker stock. The bit conforms to DIN 338 and ANSI standards, making it a drop-in fit for operations that specify those dimensional and tolerance benchmarks. It is sold individually as a single-piece unit.

Key Features

• Cobalt high-speed steel construction for heat resistance in steel and hard-alloy drilling
• 135-degree split point reduces walking and lowers entry thrust
• Oxide and bronze straw coating helps dissipate heat and resist light chip welding
• Web-thinned tapered web lowers required feed force in tougher materials
• Straight cylindrical shank fits standard 3-jaw drill chucks without adapters
• Conforms to DIN 338 and ANSI dimensional standards

Compatibility

Designed as a general-purpose jobber drill for use in any standard drill press, CNC machining center, or hand drill chuck accepting a 7.50 mm straight shank. Compatible with P, M, K, N, and S primary workpiece material classifications including steel, cast iron, non-ferrous, and similar alloys.

Installation Notes

Secure the shank fully in a properly sized chuck and verify runout before drilling. Power down the machine and lock out energy before changing or inspecting the bit. Use appropriate cutting fluid or coolant when drilling steel to extend tool life; note that this drill is not configured for coolant-through delivery. Inspect the cutting edges and web condition before each use and replace when chipping or excessive wear is observed.