Features :
Extremely Heat Resistant : twist drill bits Must be used and operated at 1500 RPM or greater for maximum efficiency. Straight shank allows for firmly holding & accurate centering, fit for standard drill chucks & regular round collet chucks.
No Center Punch Is Needed:The 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Twist drill bit kit Will not "walk"/ "wander".
Faster Cutting & Longer LifeManufactured from M35 cobalt steel,with molybdenum & cobalt added to creates a hardened alloy,measuring Rockwell hardness up to 67, for much faster cutting & extra longer life span with up to 10 times when compared with an average HSS drill bit.
Metal cutting range: thin metal plates (steel & aluminum) & body panels (metal,glass fiber,plastic), low carbon steel,they are very effective on these projects.
Includes: 13pcs hss twist drill bits: 1.5mm,2mm,2.5mm,3mm,3.2mm,3.5mm, 4mm,4.5mm,4.8mm,5mm, 5.5mm,6mm, 6.5mm.
Plastic Bag For Easy Usage & Store.