China Manufacturer Hot Sale 29 Pieces HSS Cobalt Drill Set With Amber Finish In Iron Box

China Manufacturer Hot Sale 29 Pieces HSS Cobalt Drill Set With Amber Finish In Iron Box 

1.  5% Cobalt HSS, (HSS Cobalt 5%)M35 Twist Drill Bit Set, fully ground flutes and  twist design for capability and durability. The sharp cutting teeth and chatter-free design ensure the precise countersinking and hole smooth clean.

2. The parabolic flute form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process.

3. The fully ground  drill bits set for metal/tile/wood/plastic countersink. Suitable for Home DIY, and General Building/Engineering Use.

4. A drill bits kit with size index is included in the set for easy storage and organizing. The drill bits set fits most major brands.

5. The HSS Cobalt drill bits contents:

1/16"(1.59mm),5/64"(1.98mm),3/32"(2.38mm),7/64"(2.78mm),1/8"(3.18mm),9/64"(3.57mm),5/32"(3.97mm),11/64"(4.37mm),3/16"(4.76mm),13/64"(5.16mm),7/32"(5.56mm),15/64"(5.95mm),1/4"(6.35mm),17/64"(6.75mm),9/32"(7.14mm),19/64"(7.54mm),5/16"(7.94mm),21/64"(8.33mm),11/32"(8.73mm),23/64"(9.13mm),3/8"(9.53mm),25/64"(9.92mm),13/32"(10.32mm),27/64"(10.72mm),7/16"(11.11mm),29/64"(11.51mm),15/32"(11.91mm),31/64"(12.30mm),1/2"(12.70mm)