

Faithfull HSSE M35 Cobalt Quick-Change Impact Drill Bit 4.0mm OL:91mm WL:43mm - FAIQC400C
Product Code / SKU: 127073
Faithfull Cobalt Quick-Change Impact Drill Bits feature a revolutionary tip design that is far superior to any other drill bit in the industry. These innovative drill bits have 7 cutting edges and 3 peaks that offer several distinct competitive advantages:
- Super-accurate self-centring - you can make a hole in a round-pipe with one hand.
- Speed - twice as fast as split point drill bits.
- Tool lifetime - up to 10 times longer life in mild steel.
Manufactured from M35 HSSE grade steel with a 5% cobalt content for increased heat resistance. The cutting performance is fantastic, both on precision and degree of finish, leaving much less defects (burr) than other drill bits. Its protruding centre tip acts like a pilot drill, enabling super-accurate positioning and stops the drill from wandering.
These bits are impact rated and have a 1/4in quick-change shank for use in impact drivers. Produced in accordance to DIN 338 and DIN 3126-E6.3, for high precision tolerances and geometric accuracy.
Ideal for heavy-duty industrial work in alloy steels, carbon steels, cast iron, hardened alloy steels, stainless steels, high-temperature alloys, titanium alloy, high strength steel and carbon fibre composite materials.
This Faithfull HSSE M35 Cobalt Quick-Change Impact Drill Bit has the following specification:
Tip Diameter: 4.0mm.
Working Length: 43mm.
Overall Length: 91mm.
Pack Quantity: 1.
Free standard delivery (3–5 working days) is available on UK mainland orders £75 or more, excluding Northern Ireland, the Scottish Highlands, and Islands, which always incur a delivery charge.
Priority delivery (1–2 working days) is offered but is not guaranteed as next-day service.
Deliveries to Northern Ireland, the Scottish Highlands, and Islands will always take 3–5 working days, and certain products cannot be delivered to these locations.
Tracking and notifications are provided for all orders, and any damages must be reported within 2 working days of receipt.
Tax included.
For all Standard UK Mainland orders £75 or more.
Protected by PayPal, Klarna & Adyen.
Speak to our friendly team via chat, email, or phone for expert product advice.