CoroDrill® 860
CoroDrill® 860 is a solid carbide drill designed for fast and problem-free drilling, maximizing productivity through high metal cutting efficiency. With excellent chip evacuation in long and short chipping materials, CoroDrill 860 provides green light machining at high penetration rates.
High productivity and superior tool life
Tough carbide material combined with dedicated micro geometries improve tool strength, reliability and process security. This reduces wear, extends tool life and increases productivity.
Precision and reliability
The refined cutting edges of CoroDrill 860 help lower cutting forces and improve chip control resulting in an unbeatable combination of penetration rate and precision.
Better chip evacuation
Flute shape optimizes chip form to improve chip flow and evacuation.
Application area
- Optimised for heat-resistant super alloys (HRSAs), titanium, Inconel, steel, stainless steel and aluminium
- Drilling depths of 3-8×D as standard
- Extended assortment is available as Tailor Made®
Product variants
860-PM
860-PM for long- and short-chipping steel materials, such as unalloyed steels, low carbon steels, low-alloy steels, high-alloy steels and steel castings.
- Next generation drill for improved productivity in ISO P materials
- Standard diameter range 3–20 mm (0.118−0.787 inch)
- Drill depth 3–8 × drill diameter
- Internal and external coolant
- Single diameter and drill chamfering tools as standard
- Body tolerance m7
- Achievable hole tolerance
H8–H9
860-NM
860-NM for non-ferrous materials, such as aluminium alloys, magnesium and copper based alloys including bronze.
- Standard diameter range 3–20 mm (0.118−0.787 inch)
- Drill depth 3–8 × drill diameter
- Internal coolant
- Body tolerance m7
- Achievable hole tolerance
H8–H9
860-MM
860-MM for long-chipping stainless steel materials such as austenitic, super austenitic, ferritic and duplex stainless steels.
- Standard diameter range 3–20 mm (0.118–0.787 inch)
- Drill depth 3–5 × drill diameter
- Internal coolant
- Single diameter and drill chamfering tools as standard
- Body tolerance m7
- Achievable hole tolerance H8–H9
860-SM
860-SM for titanium.
- Standard diameter range 3–16 mm (0.118–0.629 inch)
- Drill depth 3–5 × drill diameter
- Single diameter tools as standard
- Body tolerance m7
- Achievable hole tolerance H8–H9
860-SD
860-SD for nickel-based HRSA materials.
- Standard diameter range 3–16 mm (0.118–0.630 inch)
- Drill depth 3–8 × drill diameter
- Single-diameter tools as standard
- Body tolerance m7
- Achievable hole tolerance H8–H9
Tailor Made
Reconditioning
Recondition your round tools for major cost savings with our reconditioning service.
CoroDrill® 860 with -GM geometry
860-GM
CoroDrill® 860 with -GM geometry is a high-performance drilling solution for short holes primarily in steel, stainless steel, cast iron and hardened materials.
- Standard diameter range 3–16 mm (0.118–0.629 inch)
- Drill depth 3–8 × drill diameter
- Single- and two-diameter tools as standard
- Body tolerance m7
- Achievable hole tolerance H8–H9
Optimized multi-material drilling solution
Featuring a new grade, innovative flute design and a multi-layer PVD-coated tip, CoroDrill® 860 with -GM geometry is a high-performance drilling solution for short holes primarily in ISO P, M, K and H materials.
It performs competitively in ISO N and ISO S materials as well.
The New flute form with polished flutes improve chip evacuation and yield greater hole quality. It also provides high core strength and reduced cutting forces.
Excellent process security, high hole integrity and long tool life make it ideal for general engineering and for automotive applications.
Advanced geometry
- Corner reinforcement for increased corner strength and reduction in exit burr
- Optimized double margin for increased stability and improved hole quality
- New point-thinning type for reduced cutting forces and excellent hole accuracy
- New point geometry results in refined clearance angles, improved surface quality and stable wear progression
- Edge preparation for increased cutting edge strength and removal of micro defects
Benefits
- Optimized for drilling a wide range of materials and applications across all industry sectors
- Offers excellent stability, machining security and improved tool life
- Polished flutes provide better chip evacuation and help reduce heat build-up in the tool
- Robust design and excellent dimensional accuracy significantly improve finished hole tolerance and quality
- With one drill for all materials, stock holding can be reduced, and greater machine flexibility is offered leading to reduced set-up time
Application
- CoroDrill® 860 with -GM geometry can be applied in many applications and components across multiple industries
- Perfect for ISO P, K, M and H material in the general engineering and automotive industries
- Typical components are valve bodies, blocks, casings, flanges and manifolds
- Also suitable for applications where hole quality is critical within the aerospace and oil and gas industries
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| Conventional drilling | Inclined entry | Inclined exit |
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| Cross holes | Convex/concave surfaces | Chamfered holes |
Highlights
Find the right tool
Watch the animation to learn more about products that are offered within Versatile, Optimized and Customized ranges.
Reconditioning
Recondition your round tool up to 3 times for major cost savings with our reconditioning service.
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Sandvik Coromant UK
+44 (0)121 368 0305