Drill bit Proline 10 mm Ø, length 133 mm, model 78100K, single piece

Proline drill bit 10 mm Ø, length 133 mm is a single high-speed steel (HSS) metal drill designed for reliable drilling in a wide range of hard-to-machine materials. With a 10 mm cutting diameter and an overall length of 133 mm, this drill is suitable for handheld drills and drill presses and is intended for general metalworking, maintenance and repair tasks that require a standard 10 mm hole.

Advantages

The drill features a 135° point angle with chamfering adjustment to enable fast penetration and reduce time spent on marking out. Manufactured from high-class HSS with 5% cobalt, the bit offers elevated temperature resistance and improved edge life when working in high-alloy, stainless, acid-resistant, titanium and creep-resisting steels, as well as cast iron. Manufactured entirely by grinding, each drill guarantees high dimensional accuracy and straightness of the hole.

Suitable for

• Drilling holes in high-alloy and stainless steels
• Work with titanium and acid-resistant materials
• Maintenance and repair tasks using handheld drills and drill presses
• General metal fabrication where a 10 mm hole is required

Key specifications

• Cutting diameter: 10 mm
• Overall length: 133 mm
• Point angle: 135° with chamfering adjustment
• Material: high-speed steel (HSS) with 5% cobalt
• Manufacture: fully ground flutes for high accuracy and straightness
• Temperature resistance: enhanced for high-temperature cutting
• Suitable materials: high-alloy steels, stainless steels, acid-resistant steels, titanium, cast iron and other difficult-to-machine materials
• Packed in a blister pack designed for single-piece sizes in standard retail packaging

How to use

Secure the workpiece and select appropriate cutting speed and feed for the material being drilled. Use suitable coolant or cutting fluid when working with stainless, high-alloy or titanium materials to reduce heat and prolong tool life. Mount the drill bit firmly in the chuck of a handheld drill or drill press, align the tip with the marked position and start drilling with steady pressure; avoid excessive lateral force to maintain hole straightness. After drilling, back out the bit periodically to clear chips if drilling deep holes.

Usage recommendations

For best results, use cutting fluid and moderate speeds when drilling high-alloy or stainless materials; apply light pecking cycles for deep holes to prevent chip packing and overheating. Inspect the bit regularly for wear and replace when accuracy or cutting performance declines.