Eccentric Drill Bit Set for Brick and Stone with Custom Specifications

• Customization: Available
• Customized: Non-Customized
• Standard: DIN
• Length: Taper-length
• Type: Twist Drill Bit
• Material: Solid Carbide
• Usage: Wood Drilling, Metal Drilling, Masonry Drilling, Glass Drilling
• Colour: Customized
• Speification: Customized
• Transport Package: Box
• Specification: 4mm-12mm
• Trademark: green arrow
• Origin: China
• HS Code: 8207509000
• Production Capacity: 5000t/Y

Product Description

Stainless Steel Drill

Drill bits are essential cutting tools used with drills (handheld, benchtop, or magnetic) and drill presses to create cylindrical holes in numerous materials. They are the indispensable workhorses of construction, manufacturing, woodworking, metalworking, and countless DIY projects. The effectiveness and precision of any drilling operation heavily depend on selecting the right drill bit for the material and the task at hand.

Specification

1.  Twist Drill Bit (HSS): The quintessential, most widely used type. Versatile for wood, plastic, metal (with appropriate speed/lube). Spiral flutes, pointed tip.
2.  Brad Point Bit (Wood): Features a sharp, centered point (brad) and spurs on the outer edges. Provides clean entry holes, precise centering, and splinter-free holes in wood. Excellent for doweling and fine woodworking.
3. Masonry Bit (Carbide Tipped): Designed for concrete, brick, stone, and block. Features a chisel-like carbide tip for impact drilling (used with hammer drills). Flutes clear dust.
4.  Spade Bit (Paddle Bit - Wood): Flat blade with a centering point. Used for drilling large, rough holes quickly in wood (e.g., for running cables). Leaves a ragged exit hole.

6.  Hole Saw: Annular cylinder with saw teeth and a pilot drill bit attachment. Cuts large-diameter holes (e.g., for pipes, knobs) through wood, plastic, thin metal, and drywall.
7.  Step Drill Bit (Metal/Thin Sheet): Cone-shaped with progressively larger cutting steps. Used for drilling precise holes of various sizes in thin sheet metal, plastic, or electrical boxes without changing bits. Creates clean, burr-minimized holes.
8.  Countersink Bit: Creates a conical recess (countersink) at the top of a pilot hole, allowing a screw head to sit flush or below the surface. Often combined with a pilot drill bit (combination bit).
9.  Tile/Glass Bit (Carbide Grit/Diamond): Spear-pointed or specialized tip (often diamond-coated or carbide grit) for drilling through ceramic tile, glass, or porcelain without shattering. Requires low speed, constant water cooling, and no hammer action.

Key Configurations

Engine: High-torque, low-emission diesel engine (Tier III compliant)
Hydraulic System: Precision-controlled pumps and valves for smooth operation
Undercarriage: Reinforced steel tracks with adjustable tension
Cab: Ergonomic ROPS/FOPS-certified cabin with air conditioning
Arm & Bucket: Multiple size options (standard, long-reach, heavy-duty)
Control System: Intelligent monitoring panel with fault diagnostics

right elevation

left elevation

front elevation

Technical Specifications

(Custom configurations available on request.)

Product Name	M35 HSS Cobalt Pilot Point Drill Bit
Material	HSS Co
Process	Fully Ground
Standard	DIN338
Size	1/16" - 1/2"0.2-20mm
Point Type	135 Degree Split Point
Shank Type	Tri-Flats Shank/Round Shank/Hex Shank
Web & Flute Type	Regular Web & Flute
Surface Finish	Amber
Package	in PVC Pouch, Plastic Box, Individually in Skin Card, Double Blister, Clamshell, Metal Box

Usage & Recommendation

1. Material: What are you drilling? (Wood, Metal, Concrete, Tile, Plastic?)
2. Hole Size: What diameter hole do you need?
3. Hole Quality: Need a clean, precise hole (brad point, forstner) or is a rough hole acceptable (spade bit)?
4. Drill Type: What drill are you using? (Standard drill, impact driver, hammer drill?) This determines compatible shank types.
5. Depth: Need a deep hole? Consider flute length and chip clearing (parabolic flutes help).

After Sales Service

Drill bits are consumable cutting tools, differing from traditional durable hardware tools or electrical appliances. Understanding this uniqueness is crucial for reasonable rights protection and effective use. Below are the main aspects and precautions of after-sales service for drill bits:
Core principle: Drill bits are consumables
Wear and tear are inevitable: The cutting edge of the drill bit will wear, become dull, or even crack or break during use, which is determined by its working nature. Normal wear and tear are usually not covered by the warranty.
Service life depends on various factors such as material, coating, processed material, cutting parameters (speed, feed), cooling and lubrication, and operating skills, which greatly affect the actual service life of the drill bit. There is no absolute guarantee of how long it will last.

Company Profile

Why Choose Us?

type

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Multi-functional wall drill/Hexagonal handle multifunctional wall drill
Hexagonal handle cross drill/Hexagonal shank threaded cross drill
Hexagonal shank spiral extended cross drill/Round handle cross drill
Multi-functional cross drill/Hexagonal handle cross drill
Round handle straight drill/Triangle handle straight drill

Yueqing Lvjian Tools Co., Ltd. (Green Arrow Tools)

Yueqing Lvjian Tools Co., Ltd. (often known as Green Arrow Tools) is a specialist in high-quality cutting tools, focusing on drill bits and related accessories.
Located in Yueqing City, Zhejiang Province, China – a major hub for the electrical and hardware industries – the company leverages regional expertise in precision manufacturing. Lvjian Tools focuses on producing durable and reliable cutting solutions for applications in metalworking, construction, woodworking, and general industrial sectors.

FAQ

1. Q: Is OEM available?

A: Absolutely, OEM and customization options are available to meet your unique needs. We also offer professional label printing services to elevate your brand.

2. Q: Are samples available?

A: Certainly, you can request samples for comprehensive testing post price confirmation. Kindly note, the freight fee applies,
however, this will be refunded upon placing your official order.

3. Q: What are your payment terms?

A: We accept T/T, L/C, and Paypal, tailored to suit various transaction scenarios.

4. Q: What delivery methods do you offer?

A: We offer express delivery, air shipping, and sea shipping to match your logistics preferences.

5. Q: What is your delivery timeline?

A: Standard delivery is within 20-30 days after advance payment receipt.
For customized products, expect delivery within 35-45 days following advance payment receipt.