Carbide drill bits, straight shank drill bits, carbide drill bit,twist drill bit
Drill bit types: Drill bits can be divided into two categories, one is flat drills, including twist drills, center drills, deep hole drills and other drilling drill bits; the other is reaming drill bits, including countersink drills and other reaming drill bits. Big spiral drill bits are used in construction projects with an outer diameter of 400 to 600 mm and a length between 12 meters and 8 meters. Different type drill bits work together to in the complicated task. Flat-bottom drill bits are used for loose soil layers, rake drill bits for miscellaneous fill soil layers, and cylinders for obstacles such as concrete and strips.
Straight shank carbide drill bit,twist drill bit standard size:
| d=D Cutting dia.(mm) | Lc Cutting length(mm) | L Overall length (mm) |
| 0.80-1.00mm | 12mm | 50mm |
| 1.05-1.50mm | 14mm | 50mm |
| 1.55-5.00mm | 18mm | 50mm |
| 2.05-2.50mm | 20mm | 50mm |
| 2.55-3.00mm | 25mm | 50mm |
| 3.05-4.00mm | 25mm | 50mm |
| 4.05-4.50mm | 25mm | 50mm |
| 4.55-5.00mm | 25mm | 50mm |
| 5.05-6.00mm | 25mm | 50mm |
| 6.05-6.50mm | 30mm | 60mm |
| 6.55-7.00mm | 30mm | 60mm |
| 7.05-7.50mm | 40mm | 75/80mm |
| 7.55-8.00mm | 40mm | 75/80mm |
| 8.05-8.50mm | 40mm | 75/80mm |
| 8.55-9.00mm | 40mm | 75/80mm |
| 9.05-9.50mm | 40mm | 75/80mm |
| 9.55-10.00mm | 40mm | 75/80mm |
| 10.05-10.50mm | 45mm | 100mm |
| 10.55-11.00mm | 45mm | 100mm |
| 11.05-11.50mm | 50mm | 100mm |
| 11.55-12.00mm | 50mm | 100mm |
1,Tip angle 118°,d tolerance within 0.005mm
2, Standard size in stock, ready to ship.
2, Accept customize.
product picture:
Specification:
Application:Various materials,tungsten carbide drill bits for drilling
Length:50-100, standard or customize
Why Choose us ?
1, Stable good quality.
2,Competitive price
3,Timely delivery of consignments
4,Excellent after sales, technical support
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Straight Shank Tialn Coating Diameter 0.8mm Twist Drill Bit Images
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