Drill Bit & Reamer System
Comprehensive hole-making tool ecosystem engineered to address every stage of the hole-machining process with maximum efficiency and precision. From initial pilot mark to final accurately reamed bore.

High-Performance Indexable Systems
U-Drills, Spade Drills, and Swordtooth Drills with replaceable carbide inserts for maximum productivity and speed
Premium Solid Carbide Performance
Fixed Shank Tungsten Steel Drill Bits with nano coatings for superior hardness and heat resistance
Reliable HSS Performance
High-Speed Steel (L6542 M35) drills providing excellent combination of toughness and cost-effectiveness
System Performance Analysis
As a senior industrial tooling expert at MZG Tool Machine Company, I am proud to present a detailed introduction to our comprehensive hole-making tool ecosystem. This collection represents a complete spectrum of solutions, engineered to address every stage of the hole-machining process with maximum efficiency and precision. From the initial pilot mark to the final, accurately reamed bore, each tool is designed with a specific purpose, material, and performance level in mind.
The drill bit is the cornerstone of our hole-making system, encompassing a vast array of designs from fundamental solid drills to advanced, high-productivity indexable systems. Our High-Performance Indexable Systems including U-Drills, Spade Drills, and Swordtooth Drills deliver exceptional performance through replaceable carbide inserts, operating at drastically higher speeds and feeds than solid drills.
Our Premium Solid Carbide Performance Fixed Shank Tungsten Steel Drill Bits represent the pinnacle of solid drilling performance. Made from micro-grain carbide and enhanced with advanced nano coatings, these drills offer superior hardness, heat resistance, and wear life, enabling effective machining of difficult materials like hardened steels up to HRC55°.
The foundation of our range is High-Speed Steel (L6542 M35) drills, providing an excellent combination of toughness and cost-effectiveness. The inclusion of cobalt (M35) enhances red-hardness, improving performance over standard HSS for general-purpose drilling applications.
Key Performance Indicators
- Materials: HSS L6542 M35, Solid Tungsten Carbide
- Indexable Systems: U-Drills (Ø8-65mm), Spade Drills, Swordtooth Drills (Ø12-33.5mm)
- Shank Types: Straight Shank, Oblique Shank (DIN345), Morse Taper
- Coatings: Nano & Bronze Coating technology
- Length Ratios: 3D and 5D standard offerings
Our Products

Straight Shank Drill (L6542 M35)
K57High-efficiency drilling applications

Oblique Shank Drill (DIN345 HSS L6542 M35)
K59General purpose drilling applications

Oblique Shank Extension Drill (DIN345 HSS)
K60General purpose extended reach drilling

Tungsten Steel Fixed-Point Drill (WGDDZ)
K61Aluminum, aluminum alloy, die-cast aluminum; Die prehardened steel, quenched steel

Tungsten Steel Mechanical Reamer (H7)
K62HRC55 steel, stainless steel, titanium, cast iron and other hard materials

Tungsten Steel Fixed Point Drill, Center Drill
K62Precision centering operations

Powder High Speed Steel Drill Bit 3D (FMZT)
K63Steel, carbon steel, alloy steel, stainless steel, aluminum alloy, copper alloy

Powder High Speed Steel Drill Bit 5D (FMZT)
K64Steel, carbon steel, alloy steel, stainless steel, aluminum alloy, copper alloy

HSS Straight Shank Drill
K65Copper, aluminum, steel, cast iron processing

HRC45° Tungsten Steel Fixed Shank Drill Bit (DBWGZT45C)
K67Nonferrous metal, gray cast iron, stainless steel, heat resistant alloy steel

Aluminum-Use Fixed Shank Tungsten Steel Drill-3D/5D (DBWGZT-AL)
K67Specifically designed for aluminum processing

55° Bronze Colored Coating Tungsten Steel Drill-3D/5D (DBWGZT55C)
K68Hardened steel, high temperature alloy, difficult processing materials
Product Gallery








Technical Specifications
Drill Bit Specifications
- Materials: High-Speed Steel (L6542 M35), Powder High-Speed Steel, Solid Tungsten Carbide
- Indexable Systems: U-Drills (Ø8-65mm), Spade Drills, Swordtooth Drills (Ø12-33.5mm)
- Shank Types: Straight Shank, Oblique Shank (DIN345), Morse Taper
- Coatings: Nano Coating, Bronze Colored Coating, Uncoated for aluminum
- Length Ratios: 3D and 5D standard offerings
Reamer & Fixed-Point Drill Specifications
- Reamer Material: Ultrafine Tungsten Steel cutting edges (brazed or butt-welded)
- Tolerance: H7 precision for extremely tight tolerances
- Fixed-Point Drill: Point Angles 60°, 90°, 120° for various applications
- Design Features: Left-handed helix, unequal flute spacing for vibration reduction
- Diameter Range: Typically 2mm to 20mm and beyond
Application Scenarios & Processing
Application Scenarios
- High-Production CNC Machining: Indexable U-Drills and coated solid carbide drills for automotive and aerospace
- Deep Hole Drilling: Spade Drills for L/D ratios exceeding 5x in mold making and hydraulic systems
- Hard Material Machining: HRC55° coated drills for hardened die steels and heat-resistant alloys
- Precision Finishing: Reamers for bearing fits, dowel pin locations, and hydraulic valve bores
- General Fabrication: HSS drills for vertical drills, radial drills, and manual milling machines
Machining Operations
- Hole Creation: Efficiently and reliably create holes from solid material with scalable performance solutions
- Precision Guidance: Fixed-point drills create accurate pilot points preventing drill "walking" and ensuring positional accuracy
- Hole Finishing: Reamers provide final size accuracy with H7 tolerance and superior surface finish
Main Functions
Primary Functions
- Hole Creation: Efficiently and reliably create holes from solid material with scalable performance solutions
- Precision Guidance: Fixed-point drills create accurate pilot points preventing drill "walking" and ensuring positional accuracy
- Hole Finishing: Reamers provide final size accuracy with H7 tolerance and superior surface finish
Performance Benefits
- Maximum Rigidity: Solid tungsten steel construction ensures hole accuracy and straightness
- High-Speed Capability: Advanced coatings enable aggressive cutting parameters in tough materials
- Optimal Chip Control: Produce manageable chips with efficient evacuation for process security
Need Professional Hole-Making Solutions?
Our technical team can help you select optimal drill bits and reamers for specific hole-making applications. From high-speed indexable systems to precision finishing tools, we provide comprehensive drilling and reaming solutions for all materials and applications.