Fully Ground HSS4341 Straight Shank HRC67 HSS Drill Bit

Amber / Black Metal Drilling HRC65-67 Fully Ground HSS Drill Bit

HSS Twist Drill Bits​ Description:

Manufactured from HSS4341 , M2,steel, with molybdenum and cobalt added to creates a hardened alloy, measuring

Rockwell hardness up to 67 with 5% Cobalt, for much faster cutting and extra longer life span, with up to twelve times when

compared with an average HSS drill bit. No center punch is needed—the 135° Quick-Cut points are self-centering and penetrate

quickly with less pressure. Will not "walk" or "wander" Extremely heat resistant; must be used and operated at 1500 RPM or greater

for maximum efficiency. Straight shank allows for firmly holding and accurate centering,

Detail:

Hss cobalt drill bits  List :

  Application

it fit for standard drill chucks and regular round collet chucks Manufactured with all kinds of drill bit for metal

1. HSS Twist Drill
2. HSS Center Drill Bit
3. HSS Step Drill Bits
4. Reduced Shank Drill Bit
5. Taper Shank Drill Bits, and etc
6. Made into HSS Twist Drill Bits 
7. HSS Step Drill Bit; Taper Shank Drill Bits
8. Reduced Shank Drill Bits; Bi-metal Hole Saw