R8 Keyless Drill Chuck APU16 1/32"–5/8" | Milling Machine
R8 Keyless Drill Chuck APU16 1/32"–5/8" | Milling Machine
R8 Taper Keyless Drill Chuck – APU16 | 1/32"–5/8" Clamping Range
Upgrade your milling machine setup with this precision-engineered R8 Keyless Drill Chuck. Featuring an integrated one-piece R8 straight shank and a self-locking keyless mechanism, this APU16 chuck delivers rock-solid tool retention, exceptional runout accuracy, and lasting durability for demanding machining tasks.
Key Features
- Integrated R8 Straight Shank Design: One-piece construction combines the R8 shank and chuck body for a tight, vibration-resistant fit — no arbor required.
- Self-Locking Keyless System: The automatic fastening mechanism keeps your cutting tool firmly secured during operation, eliminating slippage without the need for a chuck key.
- High Accuracy: Achieves a runout accuracy of 0.08mm, ensuring consistent, precise results across a wide range of machining applications.
- Wide Clamping Range: Accepts drill bits and cutting tools from 1/32" to 5/8" (1–16mm), making it highly versatile for various bit sizes.
- Alloy Steel with Quenching Treatment: Manufactured from tough alloy steel and heat-treated via special quenching for exceptional hardness, wear resistance, and long service life.
- Milling Machine Compatible: Designed primarily for milling machines and also compatible with percussion drills, providing flexibility across your workshop.
Specifications
| Item Type | Drill Chuck |
| Specification | APU16-R8-7/16"-20 UNF |
| Clamping Range | 1/32"–5/8" (1–16mm) |
| Thread | 7/16"-20 UNF |
| Accuracy | 0.08mm runout |
| Material | Alloy Steel (Quench-Hardened) |
| Color | Silver / Black |
| Application | Milling Machines, Percussion Drills |
| Country of Origin | Made in China |
What's in the Box
- 1 × R8 Keyless Drill Chuck (APU16)
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Frequently Asked Questions
Q: What machines is the R8 Keyless Drill Chuck APU16 compatible with?
A: This R8 keyless drill chuck is primarily designed for milling machines equipped with an R8 taper spindle. It is also compatible with percussion drills, making it a versatile choice for a variety of workshop and machining setups.
Q: Do I need a chuck key to tighten or release tools with this drill chuck?
A: No. This chuck features a self-locking keyless design — simply hand-tighten to secure your cutting tool. The automatic fastening system locks the bit in place during operation, and you can release it by hand without a separate key.
Q: What is the clamping range of this drill chuck?
A: The APU16 R8 drill chuck accommodates drill bits and cutting tools ranging from 1/32" to 5/8" (1–16mm), covering the most common bit sizes used in milling and drilling operations.
Q: What makes this chuck more accurate than standard drill chucks?
A: The integrated one-piece R8 straight shank eliminates the need for a separate arbor, reducing potential runout at the connection point. Combined with precision manufacturing, this chuck achieves a runout accuracy of 0.08mm for reliable, repeatable results.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.