YATO drill bit set YT-41603 — 10-piece twist drill bits for cast iron, non-ferrous metal, plastic, stainless steel (sizes 34–133 mm)

YATO drill bit set YT-41603 is a 10-piece set of twist drill bits designed for drilling cast iron, non-ferrous metals, plastics and stainless steel. The kit contains ten individual straight-shank twist drills with lengths from 34 mm to 133 mm (sizes: 34, 49, 61, 75, 86, 93, 109, 117, 125 and 133 mm), providing a range of hole depths for workshop and industrial metalworking, maintenance and fabrication tasks. The bits are intended for use with compatible drill chucks on electric or cordless drills suitable for metalworking.

Advantages

The set offers a wide size range that covers shallow to deep-hole drilling needs without requiring multiple separate purchases. Designed for use on cast iron, non-ferrous metals, plastic and stainless steel, the bits provide versatility across common workshop materials. The straight-shank design ensures compatibility with standard drill chucks and reduces runout when properly mounted. The set format keeps sizes organized and readily available for varied tasks in maintenance and fabrication.

Suitable for

• Workshop and industrial metalworking
• Maintenance and repair tasks on machinery and structures
• Fabrication and assembly where varied hole depths are required
• Drilling in cast iron, aluminium and other non-ferrous metals
• Drilling through plastics and stainless steel panels

Key specifications

• Set composition: 10 twist drill bits, straight shank
• Material suitability: cast iron, non-ferrous metals, plastics, stainless steel
• Length/size range: 34 mm, 49 mm, 61 mm, 75 mm, 86 mm, 93 mm, 109 mm, 117 mm, 125 mm, 133 mm
• Shank type: straight shank for standard chucks
• Intended drive: electric or cordless drill with compatible chuck

How to use

Select the drill bit size appropriate for the required hole diameter and depth. Secure the chosen twist drill bit in the drill chuck, ensuring the bit is centered and tightened to minimise runout. Use suitable cutting speed and feed for the workpiece material: lower speeds for stainless steel and harder alloys, moderate speeds for cast iron and non-ferrous metals, and higher speeds for plastics where sparking and melting are not a risk. Apply steady pressure and, where necessary, use cutting fluid for metalworking to reduce heat and prolong bit life. Retract periodically when drilling deep holes to clear chips and prevent binding.

Usage recommendations

Wear appropriate personal protective equipment (eye protection, gloves and hearing protection) when drilling. For stainless steel and other tough alloys, use cutting lubricant and reduced speed to avoid overheating. Store the bits in a dry place and keep them organised to prevent damage to cutting edges.