---
title: WERA 851/1 IMP DC Bits for Phillips Screws
url: https://octoolhouse.com/product/851-1-imp-dc-bits-for-phillips-screws/
date: 2023-04-22T20:07:52+00:00
modified: 2026-10-11T22:15:19+00:00
lang: en_US
---

# WERA 851/1 IMP DC Bits for Phillips Screws

Impact Bits (IMP) with diamond coating (DC) make a particularly hard bit with a sharp-edges and reduce the danger of cam-out.

Impact Bits are needed when a strong power tool (e.g. 18 volt impact screwdriver) is used. Wera impact bits were specifically developed to withstand high power tool forces.