Drill Bit Bosch HSS-G 135° 7.5 mm x 69 mm, solid twist drill, 1 pc

Solid HSS-G twist drill bit by Bosch with a 135° split point geometry, 7.5 mm diameter and 69 mm overall length. This single-piece metal drill is intended for general-purpose and professional drilling tasks in steel and other metals. The high-speed steel (HSS-G) construction offers improved wear resistance and rigidity compared with standard carbon drills, while the 135° split point reduces walking and ensures precise hole entry when starting holes in workpieces. Compatible with hand-held drills and drill presses for workshop and on-site use.

Advantages

The 135° split point geometry enables accurate centering and reduces the need for pilot holes, improving drilling efficiency and minimizing surface damage. HSS-G high-speed steel material provides durability and heat resistance for sustained drilling in metal. The solid twist design ensures stable cutting action and consistent chip evacuation for clean holes. A single-piece construction increases strength and reduces breakage risk under typical working conditions.

Suitable for

• Drilling holes in mild and alloy steels
• General-purpose metalworking in workshops and repair jobs
• Use with hand drills and drill presses
• Professional maintenance and fabrication tasks

Key specifications

• Material: High-speed steel (HSS-G)
• Point angle: 135° split point
• Diameter: 7.5 mm
• Overall length: 69 mm
• Type: Solid twist drill (single piece)

How to use

Secure the drill bit in the chuck of a hand drill or drill press with the shank properly seated and tightened. Mark the drilling position and, if necessary, use a center punch to prevent walking. Select an appropriate cutting speed and apply steady pressure; for drilling metals, use cutting fluid to reduce heat and prolong bit life. Drill through the material with consistent feed until the hole is complete, then retract the bit while the spindle is still turning to evacuate chips.

Usage recommendations

Use cutting or cooling fluid when drilling metals to reduce heat and wear. Start at lower speed for larger diameters and hard materials, and increase speed for thinner or softer metals. Inspect the bit for wear or damage before use and replace if the cutting edges are chipped or excessively worn.