
Coated solid carbide drill for excellent stability
Ideal combination of drill geometry and carbide composition for exceptional performance on a wide range of drilling applications

Applications & Features
Applications
Features for DSW
1. New coated grade with highly improved wear resistance
• New coated carbide grade with a high level of versatility. Perfect grade for stable and long tool life on a wide range of materials.
2. Innovative cutting edge offers reliable drilling
• Non-conventional edge shape reduces cutting forces and improves adhesion strength of the coating to prevent sudden edge breakage.
3. World-wide standard shank style – Standardized with DIN6535-Form HA
• Only 6 shank size diameters available – ø6, ø8, ø10, ø12, ø14, ø16 mm. This reduces the number of collets required.
Features for DSM
1. Variety of dimensions and L/D
• Allows deep hole drilling up to 5 to 15 times the drill diameter.
• Available as standard items from ø0.1 to ø3.0 mm in 0.01 mm increments. Shank diameters are all unified to ø3 mm.
2. Center drills for machining guide hole
• DSM-CP140 type has a 140° point angle which can effectively prevent the cutting edge from chipping.
• DSM-CP90 type, which has a 90° point angle, can be also used for chamfering of the hole mouth.
Drill bodies & Grades
Drill bodies
DSW-DI (Ø3 – Ø12 mm)
- With coolant hole type
DSW-DE (Ø3 – Ø12 mm)
- Without coolant hole. Economical type
DSM (ø0.1 – ø3 mm)
- Small dia. solid carbide drill, L/D (ULDR) = 5 – 15
Main Grades
AH725
- P15 – P30 / M15 – M30 / K25 – K30 / S15 – S25
- Good balance between wear and chipping resistance
- Suitable for machining steel and stainless steel under general cutting conditions
YH170
- P20 – P35 / M20 – M35
- High resistance to wear and fracture
- Designed for drilling carbon steel and stainless steel
YH180
- High wear resistance
- Designed for drilling carbon steel and stainless steel
Practical examples
Example #1
General Engineering
Part: | Machine parts |
Material: | C55 (ISO) |
Drill body: | DSW103-040-12DE3 |
Hole diameter: | øDc = 10.3 (mm) |
Grade: | AH725 |
Cutting conditions: | Vc = 50 (m/min) f = 0.3 (mm/rev) H = 24 (mm) Coolant: Wet (External) Machine: Horizontal MC |

Standard cutting conditions
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