---
title: WERA 853/4 ACR Harpoon Bits for Phillips Screws
url: https://octoolhouse.com/product/853-4-acr-harpoon-bits-for-phillips-screws/
date: 2023-04-22T18:31:23+00:00
modified: 2026-10-12T04:19:01+00:00
lang: en_US
---

# WERA 853/4 ACR Harpoon Bits for Phillips Screws

Anti-Cam-Out (ACR) Bits have ribs at the drive tip that protect against slipping out of the screw head. It is recommended that ACR bits are matched with ribbed ACR screws.

Harpoon bits are high quality bits with reduced shaft diameter for low-lying screw connections. Countersinking of screws without any surface damage.