MSHC – DUAL CHUCK (SHORT [2″], 1/4-5/16″)

Two-inch reversible hex chuck driver with 1/4″ on one end and 5/16″ on the other — the two most common hex head screw sizes in HVAC ductwork. Magnetic tip holds the screw so you can drive one-handed. Cleanable magnet design so metal shavings don’t build up and weaken the hold.

Specs: 1/4″ and 5/16″ dual hex, 2″ length, magnetic, reversible, by Malco

Replaces: MSHC

Fits: Any drill or impact driver with a 1/4″ hex chuck

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Specs

• TypeHand tool
• DetailSHORT [2"], 1/4-5/16"

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• MALCOC-RHEX
• MALCOC-RHEXCLEANABLEREVERSIBLEMAGNETICHEXDRIVER
• MALCOMSHC

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Fits these models

• MALCOMSHC2DUALCHUCKHEXDRIVER14AND516

What tools do I actually need to change a capacitor or a contactor?

A nut driver set, insulated screwdrivers, needle-nose pliers and a meter. That is most of the residential electrical work. Add a crimper and wire strippers if you are doing anything with terminals.

What size nut driver fits HVAC panel screws?

5/16 inch covers the large majority of panel and blower screws, with 1/4 inch second. If you buy one driver, buy 5/16.

Insulated tools - necessary or marketing?

Necessary if you are working near live terminals, which on HVAC you often are. Insulated handles are a second line of defence, not a substitute for killing power at the disconnect and confirming zero volts.

What is a fin comb for?

Straightening bent condenser fins so air can get through the coil again. Hail, weed trimmers and pressure washers all bend them, and a flattened coil quietly costs capacity all summer.

Do you stock these?

On the shelf at 10226 Plano Rd, Suite 104 in Dallas.