---
title: 851/4 ADC Bits for Phillips Screws
url: https://octoolhouse.com/product/851-4-adc-bits-for-phillips-screws/
date: 2023-04-22T01:30:06+00:00
modified: 2026-10-11T23:59:31+00:00
lang: en_US
---

# 851/4 ADC Bits for Phillips Screws

ADC bits are aviation (A) bits with diamond coating (DC) to make a particularly hard bit with a sharp-edges and reduce the danger of cam-out.