Update: Added some other cobalt drill bit sets
These are great quality cobalt drill bits. There’s several YouTube reviews of these outperforming much pricier sets (links below). If you’re not familiar with cobalt drill bits, they’re made from steel alloy with 5-8% cobalt added and are basically designed for drilling very hard abrasive materials such as stainless steel and cast iron, although they can also be used for softer materials. They can also be sharpened without losing their heat resistance, an advantage over titanium drill bits as the titanium coating wears off when sharpened. Cobalt drill bits can withstand very high drilling temperatures, which results in less damage to the drill bit, so although they may cost more initially they should last longer than titanium drill bits.
YouTube Review Links Testing some M35 COBALT drill bits & Drillpro M35 Cobalt Drill Bit Set from Banggood
To get price in title
- Apply promo code BG3859665 at checkout
Note: Title prices include GST. Approximated AUD price, based on today's MasterCard rates, paying in USD.
Product | Coupon | USD | AUD |
---|---|---|---|
Drillpro 99Pcs M35 Cobalt Drill Bit Set 1.5-10mm | BG3859665 | $39.85 | $51.65 |
Drillpro 99Pcs M35 Cobalt Drill Bit Set 1.5-10mm - Metal Case | BGF98227 | $46.99 | $60.82 |
Bosch 33Pcs Drill Bit Set | BG408Z | $19.99 | $25.87 |
Drillpro M35 Cobalt Drill Bit - 13Pcs Metal Case | BGDR7520 | $12.82 | $16.59 |
Drillpro M35 Cobalt Drill Bit - 19Pcs Metal Case | BGDR7520 | $20.65 | $26.73 |
Drillpro M35 Cobalt Drill Bit - 25Pcs Metal Case | BGDR7520 | $36.12 | $46.75 |
Drillpro M35 Cobalt Drill Bit - 13Pcs Plastic Case | BG3700L | $10.44 | $13.51 |
Drillpro M35 Cobalt Drill Bit - 19Pcs Plastic Case | BG3700L | $22.48 | $29.10 |
Drillpro M35 Cobalt Drill Bit - 25Pcs Plastic Case | BG3700L | $36.41 | $47.13 |
https://www.bunnings.com.au/craftright-99-piece-titanium-coa…
Looks exactly the same as this, what's the difference?