the quality 9SICR material has high hardness
you can use small tools such as nails
and deburring/countersinking in one simple operation using a power drill to save time and minimize labor
Not Cut Proof)
Pro M35 Noir-Ti Cobalt Drill Bit Set Home Tool Kits the quality 9SICR material has21 piece Cobalt Drill Bit Collection Includes: 1 16" x 2, 5 64" x 2, 3 32" x 2, 7 64" x 2, 1 8" x 2, 9 64" x 1, 5 32" x 1, 11 64" x 1, 3 16" x 1, 13 64" x 1, 7 32" x 1, 15 64" x 1, 1 4 x 1, 5 16" x 1, 3 8" x 1, 1 2" x 1. Pro Cobalt Drill Bit Set An exceptional choice for drilling metal. Consisting of 21 titanium aluminum nitride coated cobalt drill bits with bullet point tips, offers exceptional performance specifically for drilling through metal.