Description
Price: £15.99 - £13.59
(as of Sep 16, 2025 22:06:50 UTC – Details)
amoolo 12mm 2pcs Cobalt Drill Bit, M35 HSS Metric Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron
【M35 Cobalt Drill Bit】This drill bit contains 5% Cobalt (M35 Cobalt HSS), which increases the strength, extend the tool life and makes it more heat-resistant. Rockwell Hardness >= 67.
【2Pcs x 12mm】Diameter x Overall Length: 2mm x 40mm. Come with a portable plastic case for easy storage and organization.
【Multiple Application】 M35 Coblat HSS is perfectly suitable for Hard Metals, such as Stainless Steel and Cast Iron. Can be used for Wood, Aluminum Alloy and Other Softer Metals. NOT for Glass or Ceramic Materials. Pay attention to speed, pressure and heat control during drilling.
【Fully Ground Process & 135° Split Point】No center punch is needed. Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster.
【HASSLE-FREE WARRANTY】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement in 90 days.
Customers say
Customers find these drill bits to be of excellent quality, particularly praising the Cobalt 10mm pieces. The drilling capability receives mixed feedback – while some find them excellent for drilling through steel, others report they're useless for stainless steel. Durability is also mixed, with some finding them very * strong while others report them breaking on first use. The blade sharpness and value for money receive mixed reviews.
