Makita D-17491 11.5 x 142mm HSS-Co Cobalt Metal Drill Bit

Summary

The Makita D-17491 is an 11.5mm HSS-Co cobalt twist drill bit designed for professional metal drilling applications. Manufactured to DIN 338 with M35 steel containing 5% cobalt, it delivers superior heat resistance and extended service life compared to standard High Speed Steel bits. Ideal for tradespeople and engineers working with hard or abrasive metals.

Features

• Constructed from M35 high speed steel with 5% cobalt content, providing greater hardness and durability than conventional High Speed Steel bits.
• Manufactured to DIN 338 standard, ensuring consistent geometry and interchangeability.
• 135deg split-point tip geometry prevents bit walking on contact, enabling fast and accurate penetration without centre-punching.
• Ground forged flute construction delivers a clean, precise cutting action and extended working life.
• Excellent heat and abrasion resistance makes it suitable for prolonged use in hard materials without loss of cutting edge.
• Suitable for drilling mild steel, stainless steel, hard alloys, cast iron, abrasive materials, welded seams, and high-alloy content materials.
• Compatible with standard drill chucks; suitable for use with corded and cordless drill drivers.

Specifications

• SKU: D-17491
• Diameter: 11.5 mm
• Overall Length: 142 mm
• Material: M35 HSS-Co (5% Cobalt)
• Standard: DIN 338
• Tip Angle: 135deg
• Shank Type: Cylindrical (round)
• Application: Metal / ferrous and non-ferrous hard alloys

What's Included

• 1 x Makita D-17491 11.5mm HSS-Co Cobalt Drill Bit