# Jobbers-Length Carbide Drill Bits

A good choice for general heavy-duty drilling applications, these carbide jobbers-length drill bits are the most commonly used bit length and provide a good balance of strength and accuracy. The solid carbide construction provides good wear resistance at high speeds and is well suited for drilling into the toughest materials, including cast iron, nonferrous alloys, glass, and composites and other plastics.

## Best for Steel (P)

Drill holes in steel and similar materials with these drill bits.

### Super Life TiAlN â€” Coolant-Through

### 4xD Dp x Dia Ratio

### Metric

### 5xD Dp x Dia Ratio

### Metric

### 7xD Dp x Dia Ratio

### Metric

### 8xD Dp x Dia Ratio

### Metric

### Super Life TiAlN â€” Non Coolant-Through

### 4xD Dp x Dia Ratio

### Metric

### 5xD Dp x Dia Ratio

### Metric

## Best for Stainless Steel (M)

These drill bits are a good choice for drilling into stainless steel.

### High Wear Resistance AlCrN â€” Coolant-Through

### 5xD Dp x Dia Ratio

### Inch

### Super Life TiAlN â€” Coolant-Through

### 4xD Dp x Dia Ratio

### Metric

### 5xD Dp x Dia Ratio

### Metric

### 7xD Dp x Dia Ratio

### Metric

### 8xD Dp x Dia Ratio

### Metric

## Best for Nonferrous Metals (N)

When creating holes in nonferrous materials, these drill bits provide good performance and accuracy.

### Bright (Uncoated) â€” Coolant-Through

### 7xD Dp x Dia Ratio

### Metric

### 8xD Dp x Dia Ratio

### Metric

## Best for Heat-Resistant Materials (S)

Choose these drill bits for drilling into heat-resistant materials.

### Multilayer TiN/TiAlN â€” Coolant-Through

### 5xD Dp x Dia Ratio

### Metric

### Super Life TiAlN â€” Coolant-Through

### 4xD Dp x Dia Ratio

### Metric

### 5xD Dp x Dia Ratio

### Metric

## Best for Synthetic Materials & Graphite (O)

Make holes in synthetic materials with these drill bits. They are suitable for drilling into materials such as carbon-fiber-reinforced polymer composites and materials containing epoxy and BMI resins.

### Bright (Uncoated) â€” Non Coolant-Through

### 7xD Dp x Dia Ratio

### Metric

### Diamond â€” Non Coolant-Through

### 4xD Dp x Dia Ratio

### Metric

### 5xD Dp x Dia Ratio

### Metric

## For Universal Use

Use these bits for drilling into a range of materials, including stainless steel, cast iron, and heat-resistant steel alloys.