13/19/25 PCS HSS 1-13mm M35 Bit Set Cobalt Twist Drill Bit
13/19/25 PCS HSS 1-13mm M35 Bit Set Cobalt Twist Drill Bit
$12.26
Ex Tax: $12.26
- Stock: In Stock
- Model: MZ000395
- SKU: MZ000395
Product Description
- M35 HSS-Co with 5% Cobalt: Higher hardness & heat resistance, Rockwell hardness up to HRC67. Faster cutting speed, service life 12 times longer than standard HSS drill bits.
- 135° Split Self-Centering Point：No bit wandering, less pressure required for fast penetration. Straight shank locks firmly in standard & round drill chucks for precise centering.
- Smooth Chip Removal Flutes: Efficiently eject metal chips for stable, jam-free drilling.
- Reusable & Cost-Effective: Solid cobalt steel body can be re-sharpened repeatedly to lower per-hole drilling cost.
- One-Shot Drilling Split Point: Drill target size directly without pre-drilling pilot holes.
- Fully Precision Ground Body: Robust fully-ground construction ensures accurate diameter and minimal workpiece burrs.
- Metal Drilling Application: Works for non-heat-treated metals under HRC38: stainless steel, cast iron, copper, galvanized pipe, iron, aluminum alloy. Not suitable for mild steel / high carbon steel. Adjust drill RPM if penetration is difficult.
Important Usage Note
M35 cobalt drill bits require low RPM for metal drilling. The listed recommended RPM values are for reference only and vary by workpiece material. Start at a lower speed and increase slowly once the bit cuts into the material; stop adjusting once stable penetration is achieved.
General Specifications
| Parameter | Details |
| Brand | Moonzite |
| Product Name | Moonzite M35 Cobalt Twist Drill Bit Set |
| Raw Material | HSS-Co M35 (5% Cobalt High Speed Steel) |
| Available Kit Sizes |
13pcs: 1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8, 5.0, 5.5, 6.0, 6.5mm 19pcs: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0mm 25pcs: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0mm |
| Measurement Standard | Metric (mm) |
| Shank Type | Straight Round Shank |
| Package Configuration | 13 / 19 / 25 drill bits + metal storage case |
Dimension & Recommended RPM Chart
| Bit Diameter (mm) | Overall Length (mm) | Flute Length (mm) | Suggested RPM |
| 1.0 | 34 | 12 | 3000 |
| 1.5 | 39 | 17 | 2400 |
| 2.0 | 48 | 22 | 1800 |
| 2.5 | 55 | 30 | 1600 |
| 3.0 | 62 | 33 | 1400 |
| 3.5 | 69 | 38 | 1200 |
| 4.0 | 74 | 44 | 1000 |
| 4.5 | 79 | 48 | 900 |
| 5.0 | 86 | 52 | 800 |
| 5.5 | 93 | 58 | 750 |
| 6.0 | 93 | 58 | 700 |
| 6.5 | 100 | 64 | 650 |
| 7.0 | 109 | 70 | 600 |
| 7.5 | 109 | 70 | 550 |
| 8.0 | 116 | 75 | 500 |
| 8.5 | 116 | 75 | 450 |
| 9.0 | 125 | 83 | 400 |
| 9.5 | 125 | 83 | 325 |
| 10.0 | 133 | 90 | 350 |
Package Contents
| Quantity | Item |
| 13 / 19 / 25 pcs | Moonzite M35 Cobalt Twist Drill Bits |
| 1 pc | Metal Storage Case |
