Bosch Ground High-Speed Steel Metal Twist Drill Bit 10 mm x 133 mm (87 mm)

The Bosch HSS-G DIN 338 Metal Twist Drill Bit 10 mm × 133 mm is a single-piece ground high-speed steel twist drill bit for metalworking. The high-speed steel composition gives it the rigidity needed to drill cleanly into solid metal, and it is designed for producing accurate, controlled holes in metal sheet and standard workshop stock. It is intended for routine metalwork and delivers steady cutting performance throughout normal drilling operations. It is sold as a single unit, so there is no need to buy a full set when only this size is required.

The basic geometry conforms to DIN 338, which sets the proportions for continuous metal drilling. The bit has a standard cylindrical shank that fits directly into conventional keyed or keyless drill chucks. The bright finish provides clear visual contrast against darker workpieces and typical workshop debris. At exactly 65 grams, it adds little weight to a handheld power drill. Stable drilling action is maintained from the start, helping users achieve accurate results on both small fixings and professional installations.

• 10 mm drill bit diameter for a consistent hole size with common fixings and metal fasteners.
• 133 mm overall length, providing enough reach for slightly recessed drilling locations.
• 87 mm flute length, determining the maximum depth the bit can penetrate through thick material without an extension.
• 10 mm shank diameter matching the cutting body for a secure grip in compatible chucks.
• 135° split point angle to prevent the tip from wandering on smooth metal surfaces.
• Two cutting edges that continuously clear swarf to maintain an even drilling pace.