Audited Supplier
CNTN00003
Customized
DIN, JIS, AISI, API
Jobber-length
Twist Drill Bit
High Speed Steel
Metal Drilling
Round with 3 Flat
Box
30~45 Days
YOUR BRAND
Carton
China
8207509000
Product Description
High-performance drill for high-speed, heavy-duty drilling of high-strength and stainless steel sheets.
TiAlN coating increases tool life and reduces cutting forces.
cylindrical tail with 3 120° flats for 3-bit drill chuck.
Allows maximum transmission of the couple.
Avoids the rotation of the drill bit in the mandrel.
Specially suitable for unlocking holes.
4.High-speed steel 5% Cobalt:
HSS substrate enriched with 5% Cobalt.
Better heat resistance (toughness, cutting acuity).
TiAlN coating increases tool life and reduces cutting forces.
1.Cross-point sharpening:
thinning of the tip of the drill.
Allows easy self-centering of the drill bit on the smoothest surfaces.
Greatly reduces the axial effort required.
2.TiAlN coating:
TiAlN base, thickness 2/4μm, hardness 3000HV, friction coef 0.4, hot hold 900°C.
Protects against abrasion, oxidation, adhesion.
Increases service life.
Reduces cutting forces with cutting edge protection and Better chip slip.
Versatile uses.
cylindrical tail with 3 120° flats for 3-bit drill chuck.
Allows maximum transmission of the couple.
Avoids the rotation of the drill bit in the mandrel.
Specially suitable for unlocking holes.
4.High-speed steel 5% Cobalt:
HSS substrate enriched with 5% Cobalt.
Better heat resistance (toughness, cutting acuity).
| Drill Diameter | Drill Diameter d3 | Handle Diameter or CM | Total Length | Trimmed Length |
| 12 | 4 | 6 | 65 | 42 |
| 20 | 4 | 8 | 75 | 52 |
| 30 | 4 | 10 | 100 | 77 |
| 37 | 4 | 10 | 100 | 77 |
