Overview: This document is a technical catalog for Sutton's spotting drills, highlighting their features, benefits, specifications, and usage guidelines.
Features:- Made from HSS Co material.
- TiN coated for durability.
- Precise point geometry for accurate drilling.
Benefits:- Ensures perfect hole location.
- Combines spotting and chamfering in one tool.
Specifications:- Available in two point types: 90º for chamfering and spotting, and 120º for typical drill point matching.
- Shank tolerance is h9.
- Various sizes available, ranging from 3.0mm to 25.0mm.
Usage Guidelines:- Drill only to the depth of the point.
- Feed rates are provided for different drill diameters and materials.
- Formulas for calculating revolutions per minute (n), cutting speed (vc), and feed rate (vf) are included.
Material Compatibility:- Suitable for a wide range of materials including steels, stainless steels, cast irons, coppers, aluminiums, and plastics.
- Specific cutting speeds and feed numbers are provided for each material type.
Feed Table:- Details feed rates (mm/rev) for different drill diameters and feed numbers.
Notes:- Instructions for calculating revolutions per minute and feed based on hole diameter and large end diameter.
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