Hertel 74130105 Cobalt Screw Machine Drill Bit 1/16 in

Product Description

The HERTEL 74130105 is a cobalt screw machine length drill bit designed for high-speed drilling in hard and abrasive materials. At 1/16 inch in diameter with a 135-degree split point, it reduces walking on entry and requires less feed pressure than a standard 118-degree point. The overall length is 1-5/8 inches, with a 5/8-inch flute length, making it suited for close-quarters drilling where a jobber-length bit will not fit. The straight cylindrical shank accepts standard drill chucks without modification. Machinists, maintenance technicians, and fabricators working with stainless steel, alloys, and harder metals will find this bit appropriate for production and repair work.

Screw machine length drill bits are commonly used in machining centers, drill presses, and hand-held drilling operations where stub-length rigidity is required. The short flute and overall length reduce deflection in materials that cause standard-length bits to wander or chatter. This bit is well suited for drilling pilot holes, clearance holes, and precision bores in ferrous and non-ferrous metals, particularly where material hardness demands a cobalt-grade cutting tool. It is sold individually and requires a minimum order of 12 units per order increment.

Key Features

• Cobalt construction provides heat resistance and extended tool life in hard metals
• 135-degree split point reduces entry walking and lowers required feed force
• Web-thinned, parallel web configuration improves chip evacuation and cutting efficiency
• Screw machine length body limits deflection for more accurate hole placement
• Two-flute regular spiral design for efficient chip removal in through-hole applications
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a screw machine length cobalt drill bit in the HSCO135 series, compatible with standard drill chucks accepting a straight cylindrical shank in the 0.0000 to 0.1000 inch decimal inch drill bit size range.

Installation Notes

Installation of this drill bit is performed by machinists and maintenance technicians using drill presses, CNC machining centers, or hand-held power drills. Secure the shank fully in the chuck and verify runout before drilling. Use appropriate cutting fluid or coolant for the work material to extend tool life, as cobalt bits generate significant heat in hard alloys. Always wear eye protection and secure the workpiece before beginning the drilling operation.