Jobber Length Standard HSS Left Hand Drill Bit for Metal Drilling

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Jobber Length Standard HSS Left Hand Drill Bit for Metal Drilling

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Product Description

Basic Information

Model NO.

DM4-LT002

Length

Taper-length

Type

Twist Drill Bit

Material

High Speed Steel

Usage

Metal Drilling

Size

0.5-20mm

Hardness

HRC61-66

Sharpening

118&135 Degree Point

Process

Fully Ground

Surface Finish

Black, White, Rainbow, Coffee Color

Flute

N or Va

Shank

Straight Shank Drills

HS Code

8207509000

Capacity

100,000 PCS Per Month

Product Description

HSS TWIST DRILLS: Cutting tools used to create cylindrical holes with a circular cross-section. Held in a drill that provides torque and axial force. Standard bits include DIN 338, DIN 340, and DIN 1897.

⭐ Manufacturing: Fully Ground, Milled, Rolled, Edge Ground.
⭐ Material: HSS4241, HSS4341, HSS6542(M2), HSS Cobalt 5% (M35 Co5%).
⭐ Surface: Black, Bright, Tin-coated, Amber/Coffee, Rainbow Finish.
⭐ Application: Drilling steel, cast steel, cast iron, malleable iron, sintered metal.

Manufacturing	Surface Finish	Point Angle
Roll Forged	Black	118° / 135°
Rolled & Polished	White	118° / 135°
Fully Ground	White / Tin Coated	118° / 135° Split Point
HSS Cobalt	Amber / Coffee	135° Split Point

Technical Specifications

HSS Grade	Hardness (HRC)
4241 (Mo2Cr4Vsi)	60-62
4341 (Mo3Cr4Vsi)	62-65
9341 (Mo3Cr4V)	63-66
6542/M2 (Mo5Cr4V2)	63-66
M35 (HSS Co5%)	64-67

WIDELY USED: Household & Industrial

Production Capability

✔ Over 15 years of professional production experience.
✔ Global distribution across USA, Europe, Australia, and more.
✔ 95% customer retention rate after sample testing.

Packaging & Shipping

Shipping Methods:
1. TNT/FedEx/DHL/UPS for samples (Door to Door).
2. Air or Sea for batch goods.
3. Lead Time: 3-7 days for samples; 2-3.5 weeks for batch orders.

Frequently Asked Questions

Are you a factory or a trading company?

We are a professional manufacturer with over 15 years of experience in producing high-quality drill bits. Video factory inspections can be arranged upon request.

What is your biggest advantage in the industry?

We maintain a rigorous quality control system to meet various international standards. As a direct manufacturer, we offer highly competitive pricing and quick response times through efficient cost control and production flexibility.

Do you offer OEM and customization services?

Yes, full OEM services are available, including engraved or laser-marked logos, and customized packaging solutions such as printed inner boxes and cartons.

How can I obtain samples for testing?

Samples are available upon request after price confirmation. While there is a fee for the sample and freight, the sample cost will be fully refunded once an official bulk order is placed.

What is the typical delivery time for orders?

For customized products, the typical lead time is 15-30 days after receiving the advance payment. Bulk order delivery times are scheduled based on the current factory production plan.

What materials are used for your drill bits?

We utilize various high-grade materials including HSS4241, HSS4341, HSS6542(M2), and HSS Cobalt 5% (M35) to suit different hardness requirements.