Center Drill Bit
Center Drill Bit (Combined Drill & Countersink) is a precision tool for creating accurate center holes in workpieces. Available in DIN333 metric and ANSI/ASME B94.11 imperial standards. Type A features compact body for light/medium machining. Type B offers larger body diameter and countersink for enhanced stability and heavy-duty applications including deeper holes and larger drill pre-positioning. HSS standard, HSS-E/Carbide available.
Unit Price: 2.00 USD
Volume Discount
Order Value
1000 + USD
Discount
3% off
Order Value
3000 + USD
Discount
5% off
Order Value
8000 + USD
Discount
8% off
Order Value
15000 + USD
Discount
12% off
Order Value
30000 + USD
Discount
15% off
Order Value
50000 + USD
Discount
18% off
Discounts are automatically applied at checkout based on order value.
Available Warehouse
China Factory
Stock & Production Available
Accepted Payment
Specifications
| Cart+ | SKU | Price | Quantity | Total | Body Diameter D | Drill Diameter d | Drill Length l | Total Length L | Drill Diameter d1 | FIG |
|---|---|---|---|---|---|---|---|---|---|---|
A-HSS-1 | $2 | $0 | 3.15mm | 1mm | 1.3mm | 31.5mm | - | Fig.1 | ||
A-HSS-1.25 | $2.5 | $0 | 3.15mm | 1.25mm | 1.6mm | 31.5mm | - | Fig.1 | ||
A-HSS-1.6 | $2.5 | $0 | 4mm | 1.6mm | 2mm | 35.5mm | - | Fig.1 | ||
A-HSS-2 | $3 | $0 | 5mm | 2mm | 2.5mm | 40mm | - | Fig.1 | ||
A-HSS-2.5 | $3 | $0 | 6.3mm | 2.5mm | 3.1mm | 45mm | - | Fig.1 | ||
A-HSS-3.15 | $3.5 | $0 | 8mm | 3.15mm | 3.9mm | 50mm | - | Fig.1 | ||
A-HSS-4 | $4 | $0 | 10mm | 4mm | 5mm | 56mm | - | Fig.1 | ||
A-HSS-5 | $4 | $0 | 12.5mm | 5mm | 6.3mm | 63mm | - | Fig.1 | ||
A-HSS-6.3 | $4.5 | $0 | 16mm | 6.3mm | 8mm | 71mm | - | Fig.1 | ||
A-HSS-8 | $5 | $0 | 20mm | 8mm | 10mm | 80mm | - | Fig.1 | ||
B-HSS-1 | $2 | $0 | 4mm | 1mm | 1.3mm | 35.5mm | 2.12mm | Fig.2 | ||
B-HSS-1.25 | $2.5 | $0 | 5mm | 1.25mm | 1.6mm | 40mm | 2.65mm | Fig.2 | ||
B-HSS-1.6 | $2.5 | $0 | 6.3mm | 1.6mm | 2mm | 45mm | 3.35mm | Fig.2 | ||
B-HSS-2 | $3 | $0 | 8mm | 2mm | 2.5mm | 50mm | 4.25mm | Fig.2 | ||
B-HSS-2.5 | $3 | $0 | 10mm | 2.5mm | 3.1mm | 56mm | 5.3mm | Fig.2 | ||
B-HSS-3.15 | $3.5 | $0 | 11.2mm | 3.15mm | 3.9mm | 60mm | 6.7mm | Fig.2 | ||
B-HSS-4 | $4 | $0 | 14mm | 4mm | 5mm | 67mm | 8.5mm | Fig.2 | ||
B-HSS-5 | $4 | $0 | 18mm | 5mm | 6.3mm | 75mm | 10.6mm | Fig.2 | ||
B-HSS-6.3 | $4.5 | $0 | 20mm | 6.3mm | 8mm | 80mm | 13.2mm | Fig.2 | ||
B-HSS-8 | $5 | $0 | 25mm | 8mm | 10.1mm | 100mm | 17mm | Fig.2 | ||
A-HSS-0I | $2 | $0 | 1/8" | 1/32" | 0.038" | 1-1/8" | - | Fig.1 | ||
A-HSS-1I | $2.5 | $0 | 1/8" | 3/64" | 3/64" | 1-1/4" | - | Fig.1 | ||
A-HSS-2I | $2.5 | $0 | 3/16" | 5/64" | 5/64" | 1-7/8" | - | Fig.1 | ||
A-HSS-3I | $3 | $0 | 1/4" | 7/64" | 7/64" | 2" | - | Fig.1 | ||
A-HSS-4I | $3.5 | $0 | 5/16" | 1/8" | 1/8" | 2-1/8" | - | Fig.1 | ||
A-HSS-5I | $4 | $0 | 7/16" | 3/16" | 3/16" | 2-3/4" | - | Fig.1 | ||
A-HSS-6I | $4 | $0 | 1/2" | 7/32" | 7/32" | 3" | - | Fig.1 | ||
A-HSS-7I | $4.5 | $0 | 5/8" | 1/4" | 1/4" | 3-1/4" | - | Fig.1 | ||
A-HSS-8I | $5 | $0 | 3/4" | 5/16" | 5/16" | 3-1/2" | - | Fig.1 | ||
B-HSS-11I | $2 | $0 | 1/8" | 3/64" | 0.10" | 1-1/4" | 0.1" | Fig.2 | ||
B-HSS-12I | $2.5 | $0 | 3/16" | 1/16" | 0.15" | 1-7/8" | 0.15" | Fig.2 | ||
B-HSS-13I | $3 | $0 | 1/4" | 3/32" | 0.20" | 2" | 0.20" | Fig.2 | ||
B-HSS-14I | $3.5 | $0 | 5/16" | 7/64" | 0.25" | 2-1/8" | 0.25" | Fig.2 | ||
B-HSS-15I | $4 | $0 | 7/16" | 5/32" | 0.35" | 2-3/4" | 0.35" | Fig.2 | ||
B-HSS-16I | $4 | $0 | 1/2" | 7/32" | 0.50" | 3" | 0.4" | Fig.2 | ||
B-HSS-17I | $4.5 | $0 | 5/8" | 7/32" | 0.50" | 3-1/4" | 0.5" | Fig.2 | ||
B-HSS-18I | $5 | $0 | 3/4" | 1/4" | 0.60" | 3-1/2" | 0.6" | Fig.2 |
Features
Key product features and specifications that make this product stand out.
DIN333 (Metric) & ANSI/ASME B94.11 (Imperial)
Material: HSS standard, HSS-E/Carbide optional
Type A: compact body, smaller countersink entry
Type A: ideal for light to medium machining ops
Type B: larger body diameter with countersink
Type B: enhanced stability and load-bearing rigidity
Type B: deeper holes, larger drill pre-position
60° included angle for universal applications
Combined drill and countersink function in one tool
Size designated by drill tip diameter (d) value
Metric 1-8mm / Imperial #0-#8, #11-#18 size range
Lathe centering, CNC, and pilot hole positioning
Technical Drawing
Detailed technical specifications and dimensions for professional reference.
Fig.1
Fig.2
Fig.1
Fig.2
