High hardness up to 65 HRA, smooth and tough surface, resistant to breakage
Suitable for drilling thin stainless steel plates, iron plates, carbon steel, cast iron, aluminum alloy, and copper materials
Compatible with electric drills, lithium battery drills, drill presses, and milling machines
Usage Recommendations:
Electric drill power ≥ 750W; charging device voltage ≥ 24V
Select drill bit size according to the machine’s processing hole diameter for drill presses
Maintain 90° perpendicularity between drill bit and stainless steel plate during drilling
Use larger drill bits for step drilling and hole enlargement
Securely clamp the drill bit shank; shorter drill bits preferred
Apply even force and stabilize the base during drilling
Drill Bit Structure:
Straight shank with working part consisting of two main cutting edges and secondary cutting edges
Guiding section for alignment and wear resistance
Spiral chip groove design for efficient chip removal
Product Range and Packaging:
| Width | 8.5 |
| Height | 2.9 |
| NetWeight | 0.23 |
| Brand | deli |
| Product Name | deli 6542 High-Performance Twist Drill Bits (All-Ground Series) |
| Material | High-speed steel 6542 |
| Dual process | high-precision grinding and salt bath heat treatment for enhanced hardness and durability |
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| Optimal drill speed | 80–120 RPM; excessive speed may cause bit overheating and damage |
| DL907420 | 13-piece set, sizes 1.5/2/2.5/3/3.2/3.5/4/4.5/4.8/5/5.5/6/6.5 mm |
| DL907421 | 10 pcs pack, 3 mm |
| DL907422 | 10 pcs pack, 3.2 mm |
| DL907423 | 10 pcs pack, 4 mm |
| DL907424 | 10 pcs pack, 4.2 mm |
| DL907425 | 10 pcs pack, 5 mm |
| DL907426 | 10 pcs pack, 5.2 mm |
| DL907427 | 10 pcs pack, 6 mm |
| DL907428 | 10 pcs pack, 8 mm |
| DL907429 | 5 pcs pack, 10 mm |
| DL907430 | 5 pcs pack, 12 mm |