FDW HSS Fully Ground Drill Bit M35 Cobalt Steel 28 Sizes

FDW HSS Fully Ground Drill Bit M35 Cobalt Steel 28 Sizes

• Constructed of M35 High-speed Steel for Super Abrasive Resistance in Tough Metals
• The Large Increment of Drill Body Makes the Product not Easy to Break
• The Shape of Drill Body is Better
• The Hole with Thick Core is Easier
• Quenching Temperature within 5 Degrees Temperature Control
• More Stable Quality
• More Quenching Toughness is Better
• The Material Contains Cobalt So the Thermal Hardness Can be Better.