

Alpha 25 Piece Cobalt Metric Tuffbox Drill Set 1-13mm
The Alpha SM25CO 25 Piece Drill Set is the heavy-duty solution for professionals who need to drill through the toughest materials on earth. Featuring genuine 8% Cobalt jobber drill bits, this set offers exceptional heat resistance and hardness that standard HSS bits simply cannot match. Specifically engineered for drilling difficult materials like stainless steel, high-tensile alloys, and cast iron, this kit ensures you maintain a sharp cutting edge longer, organized in a rugged Tuffbox that survives the harshest job sites.
Features:
8% Cobalt Content: Manufactured with a premium M42 grade steel containing 8% Cobalt, providing superior heat resistance that prevents the bit from softening when drilling hard metals like stainless steel.
135° Split Point: Features a precision 135-degree split point that self-centers immediately upon contact, eliminating "walking" and the need for a centre punch on curved or hard surfaces.
Fully Ground Precision: Each bit is fully ground from solid stock rather than rolled, resulting in a concentric, highly accurate tool that clears chips efficiently and drills a perfectly round hole.
Rugged Tuffbox Storage: Housed in a heavy-duty, impact-resistant plastic case with rubberized corners, designed to protect your bits from drops and moisture while keeping them organized by size.
Metric Coverage: Covers the complete general-purpose range from 1.0mm to 13.0mm in 0.5mm increments, ensuring you always have the correct size for tapping, riveting, or bolting applications.
Specifications:
Part Number: SM25CO
Material: M42 HSS with 8% Cobalt
Point Angle: 135° Split Point
Range: 1.0mm - 13.0mm (0.5mm increments)
Application: Stainless Steel, High Tensile Alloys, Cast Iron
Contents:
25 x Cobalt Jobber Drills: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm, 7.0mm, 7.5mm, 8.0mm, 8.5mm, 9.0mm, 9.5mm, 10.0mm, 10.5mm, 11.0mm, 11.5mm, 12.0mm, 12.5mm, 13.0mm