Overview

This document details the specifications, features, and usage guidelines for AG Power Drills (AGPSD) and AG Power Long Drills (AGPLSD). These are high-performance High-Speed Steel (HSS) drills with AG coating, designed to enhance rigidity, chip evacuation, heat resistance, and wear durability.

Product Features

• Flute Design: Optimized to balance rigidity and chip evacuation, enabling stable and efficient machining.
• AG Coating: Provides superior heat resistance and wear durability, extending tool life.
• Long Drilling Capability: AG Power Long Drills support non-step drilling up to 20 times the drill diameter (20 L/D).
• High Rigidity and Large Chip Pocket: Ensures stable cutting and efficient chip removal.

Performance Comparison

Tests show AG Power Long Drills significantly reduce machining time (e.g., 41 seconds vs. 61 seconds for a 6mm step feed) compared to conventional drills. They also demonstrate improved wear resistance after drilling over 200 holes and lower cutting torque and thrust forces during non-step drilling of tempered alloy steel.

Material and Coating Details

• Tool Material: High-Speed Steel (HSS) with cobalt content for enhanced durability.
• Coating: AG coating featuring a TiAl-based wear-resistant film combined with a heat and oxidation resistant membrane.
• Geometry: 34° helix angle, 118° point angle, and diameter tolerance of h8.

Standard Drilling Conditions

Recommended spindle speeds (rpm) and feed rates (mm/min) vary by drill diameter and work material, including carbon steels, alloy steels, pre-hardened steels, mold steels, hardened steels, and cast irons. Key guidelines include:

• Use water-soluble cutting fluids with adequate supply to the cutting point and flute.
• Reduce spindle speed and feed by 20% when using non-water-soluble cutting fluids.
• For hole depths exceeding 5×D (AGPSD) or 20×D (AGPLSD), reduce speed and feed by 20-30% and apply step drilling.
• Step drilling involves retracting to the hole entrance and advancing in increments of 0.5-1×D (0.2-0.5×D for small diameters).
• Use collet or milling chucks for tool holding to ensure stability.
• Reduce speed and feed by 20% when drilling rolled or forged surfaces.

Product Range and Ordering Information

Drill diameters range from 1.0 mm to 20.0 mm, with detailed flute lengths, overall lengths, stock availability, and pricing in Japanese Yen. Both AG Power Drills and AG Power Long Drills are offered in multiple series with precise dimensional data.

Usage Precautions and Safety

• Avoid inappropriate cutting conditions to prevent tool damage.
• Do not use tools exhibiting significant wear or chipping.
• Securely clamp both the tool and workpiece during operation.
• Be cautious of fire hazards from hot chips or sparks during tool breakage; ensure proper machine guarding and remove flammable materials.
• Do not touch cutting edges with bare hands.
• Avoid contact between chips or rotating tools and body or clothing.

Additional Notes

• Pre-drilling guide holes with a depth of 2-3×D is recommended for long drills to facilitate drilling.
• Adjust cutting conditions based on machine rigidity and work clamp conditions.
• Some stock items are exclusive to authorized dealers and available only to customers in Japan.
• Specifications may change without notice for product improvement.

Summary of Drilling Conditions and Recommendations for Chip Removal

• When chip removal is poor under certain materials and conditions, add parameter 'A' even if drilling depth is 17×D.
• During step feed, retract to the hole entrance and advance in steps of approximately 0.5 to 1×D (0.2 to 0.5×D for small diameters).
• Use collet or milling chucks for improved stability and precision.
• Pre-drilling guide holes of 2 to 3×D depth are recommended.

Units and Contact Information

All measurements are in millimeters (mm) and prices in Japanese Yen (¥). Manufacturer contact details for Nachi-Fujikoshi Corp., including Tokyo headquarters and regional offices, are provided for inquiries and orders.