Cobalt Drill Bit Set - 29Pcs M35 HSS Twist Drill Bits
- M35 Cobalt Drill Bit: Premium High Speed Steel M35 (Cobalt 5%) offers superior heat resistance and greater hardness compared to ordinary drill bits. It can extend the tool's service life when drilling hard materials.
- 135° Split Point Design: The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip with round straight shank, self-centering to prevent walk-off, make drilling precise and faster.
- Efficient Drilling: Fully Ground twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance.
- Various Sizes: 29 sets of drill bits include "1/16",5/64",3/32",7/64",1/8",9/64",5/32",11/64",3/16",13/64",7/32",15/64",1/4",17/64",9/32",19/64",5/16",21/64",11/32",23/64",3/8",25/64",13/32",27/64",7/16",29/64",15/32",31/64",1/2", can meet more needs.
- Widely Used: M35 Cobalt High Speed Steel is more suitable for tough, high tensile strength material. Particularly successful in cutting harden metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods.
- Set Includes: The set includes 29Pcs (1/16"-1/2") Cobalt Drill Bits, This cobalt drill bit also includes the drill bit holder with size index for easy storage and organizing.
Estimated shipping
Select a product to estimate shipping.This SEDIANAS 29-Piece Cobalt Drill Bit Set is a versatile addition to any workshop, offering enhanced performance when working with tough materials. Designed for precision and durability, these bits will help you achieve clean, accurate holes.
Key Highlights
- Superior Heat Resistance: M35 Cobalt Steel (5% Cobalt) provides exceptional heat resistance, extending the life of your drill bits.
- Fast & Precise Drilling: The 135° split point design ensures quick entry and accurate hole placement.
- Efficient Chip Removal: Fully ground twist design minimizes friction and heat buildup for cooler, more efficient drilling.
- Comprehensive Size Range: Includes 29 drill bit sizes from 1/16” to 1/2”, covering a wide variety of drilling needs.
- Secure & Stable: Round shank design provides excellent self-centering, reducing slippage and improving control.
Useful Facts
- Material: High Speed Steel (HSS) with Cobalt
- Cutting Angle: 135 degrees
- Shank Type: Round
- Brand: SEDIANAS
- Set Includes: 29 drill bits (1/16” - 1/2”)
Good Fit For
- Metalworking projects
- Working with stainless steel, cast iron, and hardened metals
- Plastic parts with metal components
- DIY enthusiasts and professionals
Product details






Specifications
| Main Specification | |
|---|---|
| Manufacturer | SEDIANAS |
| Unit Count | 29 Count |
| Surface Recommendation | amber finished |
| Cutting Diameter | 0.5 Inches |
| Shank Type | Round |
| Tool Flute Type | Spiral |
| Brand | SEDIANAS |
| Cutting Angle String | 135 Degrees |
| Included Components | 29Pcs (1/16"-1/2") Cobalt Drill Bits |
| Number of Pieces | 29 |
| Material | High Speed Steel (Hss) |
| Finish Type | Gold Oxide |
| Product information | |
|---|---|
| Number of Packs | 1 |
| Set Name | 29-Piece Cobalt Drill Bit Set |
| Technical Details | |
|---|---|
| Part Number | 29 PCS Cobalt Drill Bit Set |
| Model | 29 PCS Cobalt Drill Bit Set |
| Material Type | High Speed Steel (HSS) |
| Number of Flutes | 2 |
| Style | |
|---|---|
| Finish Types | Gold Oxide |
| Others | |
|---|---|
| Item Highlight | Stainless Steel, 1/16"-1/2", Suitable for Hardened Metals, Cast Iron and Plastic with Metal Index Storage Box |
| Product Type | Jobber Drill Bits |
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