Studio view of the silver Bosch HB85PB high-speed steel pilot bit featuring spiral flutes and a hex shank.
Vertical profile of the pilot bit highlighting the twist drill design and 1/4-inch hex shank for quick change mandrels.
High-angle action shot of a worker using a drill equipped with a hole saw and the pilot bit to cut into a metal electrical panel.
A worker uses a cordless drill with a hole saw and pilot bit to drill into a white curved surface, generating white debris.
Studio view of the silver Bosch HB85PB high-speed steel pilot bit featuring spiral flutes and a hex shank.
Vertical profile of the pilot bit highlighting the twist drill design and 1/4-inch hex shank for quick change mandrels.
High-angle action shot of a worker using a drill equipped with a hole saw and the pilot bit to cut into a metal electrical panel.
A worker uses a cordless drill with a hole saw and pilot bit to drill into a white curved surface, generating white debris.
BOSCH

Bosch HB85PB 3-3/8 Inch High-Speed Steel Quick Change Pilot Bit 1/4 Inch Hex Shank for Bi-Metal Hole Saws

In stock
SKU: HB85PB
$4.89

Description

STREAMLINE YOUR WORKFLOW WITH QUICK CHANGE EFFICIENCY

Maximize your productivity on the job site with the Bosch HB85PB 3-3/8 Inch High-Speed Steel Pilot Bit. Designed as an integral component of the Bosch Quick Change™ Universal Hole Saw System, this pilot bit allows you to work faster and smarter. Its revolutionary design enables seamless compatibility with Bosch mandrels, letting you switch out hole saws in seconds without fumbling with set screws or locking pins. Constructed from premium high-speed steel (HSS), this bit delivers durability and precision, making it the ideal choice for starting clean, accurate holes in wood and other soft materials.

Engineered for versatility, the HB85PB features a 1/4-inch hex shank that ensures a secure, slip-free grip in your mandrel. It is specifically optimized for use with bi-metal hole saws and fits perfectly with Bosch Quick Change™ mandrels (models PCM38, PCM12, and PCMSDSPL). Whether you are a professional contractor or a dedicated DIYer, this pilot bit simplifies plug removal and ensures accurate hole placement every time. Upgrade your hole saw system with the reliability and speed of Bosch engineering.

Key Features

  • High-Speed Steel Construction: Durable HSS material ensures long-lasting performance and sharp cutting edges.
  • Quick Change Compatibility: Designed for use with Bosch Quick Change™ mandrels (PCM38, PCM12, PCMSDSPL) for rapid accessory swaps.
  • Wood Optimized: Engineered to provide fast, clean starts primarily in wood applications when paired with bi-metal saws.
  • Secure Fit: Features a hex shank design to prevent slippage and ensure high torque transfer.
  • Precision Length: 3-3/8 inch overall length provides the necessary reach for standard hole saw depths.
  • Universal System: Part of a system that works with various tool brands, enhancing your existing toolkit's versatility.

What's Included

(1) 3-3/8 Inch High-Speed Steel Pilot Bit

Specifications

Manufacturer Bosch
Model Number HB85PB
Bit Material High-Speed Steel (HSS)
Overall Length 3-3/8 in.
Flute Length 1-3/8 in.
Drill Diameter 1/4 in.
Shank Type Hex
Shank Size 3/8 in. (Fits standard mandrels)
Compatibility PCM38, PCM12, PCMSDSPL Mandrels
Primary Application Wood (Pilot for Bi-Metal Saws)
Package Quantity 1

Pro-Tip: If the pilot bit becomes dull, it can cause the hole saw to "walk" or drift before the saw teeth engage. Replace your pilot bit regularly to ensure accuracy and to reduce the physical effort needed to start the cut. A sharp pilot bit is the secret to a clean, perfectly centered hole.