Baolian M35 Cobalt High-Speed Steel Double-Ended Twist Drill Bit Double-Edged Cobalt Drill Bit for 304 Stainless Steel

Product Specifications

Brand: Baolian ()

Product Name: M35 Double-Ended Twist Drill Bit

Material: High-Speed Steel (M35)

Drill Bit Sizes: 3.0mm to 5.5mm (including 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.2mm, 4.5mm, 5.0mm, 5.2mm, 5.5mm)

Features:

High hardness and wear resistance due to M35 high-speed steel forging

Sharp cutting edge with 135° fully ground industrial-grade imported blade for stable, sharp, and hard performance

Double-ended twist drill design for faster drilling and longer durability

Large U-shaped double chip grooves for efficient chip removal and reduced residue buildup

High cobalt content enhances hardness and wear resistance

Precise positioning and fast cutting speed

Suitable for drilling aluminum alloy, cast iron, galvanized pipes, copper, wood, and other materials

Compatible with electric drills, cordless drills, and bench drills (recommended 24V/48V cordless drills; 12V cordless drills not recommended due to low torque)

Multiple specifications to meet various usage needs (3.0mm to 5.5mm)

Dimensions and Weight (approximate, manual measurement may vary):

| Drill Diameter | Working Length | Total Length | Weight |

|----------------|----------------|--------------|---------|

| 3.0mm | 15mm | 49mm | 2g |

| 3.2mm | 15mm | 49mm | 3g |

| 3.5mm | 16mm | 52mm | 4g |

| 4.0mm | 16mm | 52mm | 5g |

| 4.2mm | 17mm | 54mm | 6g |

| 4.5mm | 18mm | 58mm | 7g |

| 5.0mm | 19mm | 61mm | 8g |

| 5.2mm | 19mm | 61mm | 8g |

| 5.5mm | 20mm | 67mm | 11g |

Note: All dimensions are manually measured and may have slight deviations; actual product received shall prevail.

Package: Multiple drill bits in one box covering sizes from 3mm to 5.5mm for versatile use and convenience.

Usage Tips:

Compatible with electric and cordless drills

Recommended for use with 24V or 48V cordless drills due to torque requirements

Not recommended for 12V cordless drills due to insufficient torque

Summary:

Baolian M35 Double-Ended Twist Drill Bits offer industrial-grade quality with high hardness, excellent wear resistance, fast drilling speed, and efficient chip removal. They are designed to solve common drilling problems such as rusting, breakage, and overheating, ensuring reliable and durable performance across a wide range of materials and applications.