HRC55 90° Solid Carbide Spot Drill for Centering and Chamfering
Consistent Quality
Consistent geometry across repeat orders.
Pedidos flexíveis
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Padrão e personalizado
Standard sizes and custom configurations.
HRC55 90° Solid Carbide Spot Drill
This HRC55-series 90° solid carbide spot drill is designed for accurate spotting, centering and selected chamfering operations in steel, alloy steel and mold steel. Its short, rigid cutting geometry helps establish a controlled starting position before follow-up drilling, while the 90° included point can also produce a 45° edge chamfer when used perpendicular to the workpiece surface. Standard diameters range from Ø3 to Ø12 mm, with standard, 150 mm and selected 200 mm overall-length configurations available.
90° Included Angle
2 Cutting Edges
Carbeto sólido
Ø3–Ø12 mm
Key Configuration
1
90° Point Geometry
Creates a controlled starting feature for follow-up drilling and can produce a 45° chamfer around the hole edge.
2
Two-Edge Spiral Design
Two cutting edges balance the cutting load while spiral flutes provide chip space during shallow spotting and chamfering.
3
Standard & Extended Reach
Standard-length tools provide the highest rigidity, while selected 150 mm and 200 mm configurations support restricted-access machining.
Precision Hole-Preparation Functions
01 · Spotting
Creates a shallow conical starting feature that helps the following drill enter at the programmed hole location.
02 · Centering
Improves entry stability for subsequent drilling, especially with small-diameter or extended-length drills in rigid CNC setups.
03 · Chamfering
Produces a 45° chamfer around a drilled hole and supports selected edge-breaking and light countersinking operations.
90° Point Geometry & Application
How to Use a 90° Spot Correctly
- Keep the spot shallow when its main purpose is accurate hole location.
- Use controlled axial depth when producing a specified hole-edge chamfer.
- Check the relationship between the 90° spot and the following drill-point angle.
- Do not use the spot drill as a substitute for a full-depth twist drill.
Key Product Advantages
◎
Controlled Drill Entry
Creates a defined starting position and helps reduce drill wandering during entry.
◇
Spotting & Chamfering
The 90° point supports accurate spotting and selected 45° edge chamfering.
◆
Carbide Rigidity
Rigid solid carbide supports stable positioning and controlled chamfer depth.
↕
Flexible Reach
Standard, 150 mm and selected 200 mm lengths cover different access requirements.
Tool Construction & Cutting Style
• Two-Edge Spiral Geometry
Two cutting edges share the cutting load while the spiral flutes provide chip space.
• Solid-Carbide Body
Rigid construction supports consistent spot location and controlled chamfer depth in stable setups.
• Straight Shank
Designed for low-runout clamping in a clean precision collet, hydraulic or shrink-fit holder.
Product Video
Solid Carbide Spotting and Chamfering Tool
Workpiece Material Compatibility
| MATERIAL GROUP | EXAMPLES | APPLICATION NOTE |
|---|---|---|
| P Steel & Alloy Steel | Carbon steel and alloy steel | Primary application |
| H Pre-Hardened Steel | Mold steel and selected hardened steel | Confirm actual hardness |
Steel and Aluminum Require Different Cutting Styles
● Coated Steel-Focused Version
The coated tools are intended for steel, alloy-steel and mold-steel applications. Coating and edge preparation help manage cutting heat and abrasive wear.
● Polished Aluminum Version
Aluminum-focused tools normally use sharper cutting edges and polished flutes to reduce friction and material adhesion.
For aluminum-focused drilling, view the polished solid carbide drill for aluminum.
Applications & Target Scope
- Accurate spotting before twist drilling
- Hole-location preparation on CNC machining centers
- Centering before small-diameter or extended-length drilling
- Producing controlled 45° hole-edge chamfers
- Selected light countersinking and edge-breaking operations
- Restricted-access machining with 150 mm or 200 mm tool lengths
Product Series Information
Technical configuration and dimensional coverage for the HRC55 90° solid carbide spot-drill series.
| Tipo de ferramenta | Spot Drill | Point Angle | 90° |
| Material da ferramenta | Carbeto sólido | Flute Design | 2 Cutting Edges |
| Faixa de diâmetro | Ø3–Ø12 mm | Comprimento total | 50–200 mm |
| Tipo de haste | Cylindrical Straight Shank | Application Positioning | Steel Applications up to HRC55 |
| Primary Operations | Spotting and Centering | Secondary Operation | 45° Edge Chamfering |
Tool Nomenclature & Dimensions
Reference dimensions used in the standard size matrix for this 90° solid carbide spot-drill series.
Standard Size Matrix
Standard and extended-length configurations retained from the original product size chart. All dimensions are in millimeters.
| Modelo | Cutter Diameter D | Point Angle | Overall Length L | Shank Diameter d |
|---|---|---|---|---|
| D3×90° | 3 | 90° | 50 | 3 |
| D4×90° | 4 | 90° | 50 | 4 |
| D5×90° | 5 | 90° | 50 | 5 |
| D6×90° | 6 | 90° | 50 | 6 |
| D6×90°×150L | 6 | 90° | 150 | 6 |
| D8×90° | 8 | 90° | 60 | 8 |
| D8×90°×150L | 8 | 90° | 150 | 8 |
| D8×90°×200L | 8 | 90° | 200 | 8 |
| D10×90° | 10 | 90° | 75 | 10 |
| D10×90°×150L | 10 | 90° | 150 | 10 |
| D10×90°×200L | 10 | 90° | 200 | 10 |
| D12×90° | 12 | 90° | 75 | 12 |
| D12×90°×150L | 12 | 90° | 150 | 12 |
Setup & Machining Guidance
- Minimize Runout: Clean the shank and holder, verify clamping and keep tool projection as short as the part permits.
- Control Spot Depth: Program only the depth needed for hole location or the specified chamfer width.
- Match Cutting Data: Select speed, feed and coolant according to material hardness, coating, tool diameter and machine rigidity.
- Use Extended Length Carefully: The 150 mm and 200 mm tools require low vibration, reliable clearance and more conservative parameters.
Recommended Hole-Making Workflow
Spot or Center
Create a shallow and accurately located starting feature.
Drill the Hole
Continue with the correctly selected solid carbide twist drill.
Finish as Required
Chamfer, ream or inspect according to the finished-hole specification.
For steel hole production after spotting, view the HRC55 solid carbide twist drill for steel.
Recommended Starting Cutting Parameters
Use the technical guide as a starting reference, then adjust the parameters according to tool diameter, material grade, hardness, spot depth, tool overhang and machine rigidity.
Solid Carbide Drill Cutting Data Guide
Access ISO-categorized starting cutting data for initial machining trials.
Solid Carbide Drill Product Family
Review matching spotting, chamfering and hole-making tools for different workpiece conditions.
HRC55 90° Series
Current Spot-Drill Option
HRC65 Spot Drills
Harder-Material Option
90° Chamfer Cutters
Chamfering-Focused Option
Custom Spot Drills
Drawing-Based Supply
For additional sizes and related series, View the Solid Carbide Drill Catalog.
HRC55 90° Spot Drill Customization
Cutting diameter, 90° point geometry, cutting length, overall reach, edge preparation and coating are configured according to the required centering or chamfering operation, workpiece material and hardness.
90° Point Geometry & Edge Preparation
The 90° point, center-cutting geometry, flute profile and cutting-edge preparation can be reviewed for accurate spotting, controlled drill entry and selected 45° hole-edge chamfering.
Dimensions & Reach Options
Cutting diameter, flute length, overall length, shank diameter and available reach can be configured according to the required spot diameter, chamfer size and component-access conditions.
Serviços de OEM e marca própria
OEM manufacturing and private-label supply options for industrial distributors, tooling brands and repeat-production customers.
Laser Etching
Custom marking for logos, tool codes, model numbers, dimensions, coating identification and batch information.
Custom Packaging
Individual protective tubes, internal supports, custom labels, multi-pack boxes and private-label packaging.
Commercial Terms
Flexible MOQ options for standard dimensions, custom lengths, trial orders and scheduled repeat supply.
Technical Workflow
Inquiry
Submit the spot or chamfer dimensions, workpiece grade, hardness and required quantity.
Engineering
Point geometry, cutting length, coating and edge preparation are reviewed.
Commercial
Quotation, MOQ, production schedule and delivery terms are confirmed.
Production
Carbide grinding, 90° point formation, edge preparation, coating and marking.
Quality Control
Diameter, point angle, cutting-edge condition, concentricity and runout are inspected before dispatch.
Inspection & Quality Control
Drill dimensions, cutting-edge geometry and visible surface condition are checked according to the confirmed product specification and application requirements.
Protective Packing for Shipment
Finished drills are protected individually before batch labeling and export-carton reinforcement.
Individual Tool Protection
Each drill is individually protected in a plastic tube to reduce contact damage during storage, handling and transportation.
Batch & Label Verification
Tools are grouped and labeled by specification to support order verification before carton packing.
Export Carton Protection
Batch packaging, cushioning materials and reinforced export cartons are selected according to the order quantity and shipping method.
Reference Lead Time
The following timeframes are general references. Availability and production scheduling are reviewed for each order.
Shipping Options
Shipping arrangements can be selected according to order size, delivery schedule and destination.
Product FAQs
Product-specific information about applications, 90° point geometry, HRC55 series positioning, available configurations and machining requirements for this solid carbide spot drill.
What materials and applications is this spot drill designed for?
This solid carbide spot drill is designed primarily for accurate centering, spotting and selected light chamfering operations in steel, alloy steel, pre-hardened steel and other confirmed materials. Final suitability should be reviewed according to the exact material grade, hardness, feature size and machining conditions.
What is the purpose of the 90° point angle?
The 90° included point angle can produce a controlled starting feature for follow-up drilling and create a 45° chamfer on each side of a hole. The selected spotting diameter and depth should be matched to the point geometry of the following drill and the required chamfer dimensions.
What does the HRC55 designation mean?
HRC55 indicates the product-series positioning and an upper application target for selected machining conditions. It is not a universal guarantee that every material at 55 HRC can be machined with the same parameters. Workpiece grade, actual hardness, coating, tool overhang and machine rigidity must be confirmed.
Can the same tool be used for both centering and chamfering?
Yes. Its short, rigid 90° geometry is suitable for spotting and selected light chamfering operations. For wide chamfers, heavy countersinking or interrupted cuts, the required feature dimensions and cutting conditions should be reviewed before tool selection.
What sizes and configurations are available?
Standard and custom configurations can be reviewed according to the product series. Cutting diameter, cutting length, shank diameter, overall length, point angle, coating and dimensional tolerances should be confirmed before ordering.
What information is required for a quotation?
Please provide the required cutting diameter, shank diameter, cutting length, overall length, workpiece material and hardness, coating requirement and estimated quantity. A drawing is recommended when the tool must produce a specified spot diameter, chamfer or non-standard feature.
Ordering & OEM FAQs
General information for trial orders, mixed-size purchasing, private labeling and production scheduling.
Do you accept small trial orders?
Yes. Small sample or trial orders are welcomed for checking centering accuracy, chamfer quality, tool life and compatibility with the intended workpiece before volume purchasing.
Can mixed sizes be ordered together?
Yes. Standard and custom sizes can be combined in one order when the carbide grade, coating and production requirements are compatible. Mixed-size purchasing is suitable for distributors and multi-diameter machining requirements.
Is OEM laser marking available?
Yes. Custom shank laser marking such as a logo, model number, tool dimensions or batch identification can be reviewed together with OEM labels and packaging requirements.
What is the typical production lead time?
Standard stock items normally have a shorter lead time, while custom dimensions, special coatings and OEM orders require additional production time. The exact schedule is confirmed according to specification, quantity, coating and current production capacity.
Downloads & Technical Resources
Access product dimensions, series information and starting cutting data for tool selection and application review.
Need Sizes, Pricing or Custom Options?
Send us the required tool type, sizes, quantities, workpiece material and any OEM or custom requirements. We will confirm suitable specifications, availability, lead time and quotation details.
Drawings, size lists and reference photos are welcome.
