# ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) vs Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb): specs and price compared

A sourced, side-by-side comparison of the ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) (ACDelco) and Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) (Craftsman) among torque wrenches. Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) is the cheaper of the two at $82.99.

## Side by side

| Spec | ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) | Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) |
| --- | --- | --- |
| US price | $114.99 | $82.99 |
| Brand | ACDelco | Craftsman |
| Drive size (in) | 0.5 | 0.375 |
| Torque min ft (lb) | 14.8 | 20 |
| Torque max ft (lb) | 147.5 | 100 |
| Torque range (nm) | — | — |
| Accuracy | ±2% CW / ±3% CCW (20-100% of maximum torque) | — |
| Mechanism | digital/electronic | click (micrometer-adjustable) |
| Overall length (in) | — | 19 |
| Ratchet tooth count | — | — |
| Calibration certificate | Included — ISO 6789 standards compliance with certificate of calibration | Included — Craftsman.com states the wrench ships with a torque certification certificate |
| Weight (lb) | 3.9 | — |

## Key differences

- Drive size (in): ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) 0.5 vs Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) 0.375
- Torque min ft (lb): ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) 14.8 vs Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) 20
- Torque max ft (lb): ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) 147.5 vs Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) 100
- Mechanism: ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) digital/electronic vs Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) click (micrometer-adjustable)
- Calibration certificate: ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) Included — ISO 6789 standards compliance with certificate of calibration vs Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) Included — Craftsman.com states the wrench ships with a torque certification certificate

## Sources

- ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb): https://www.zoro.com/acdelco-12-digital-torque-wrench-99-to-99-ft-lbs-arm601-4-arm601-4/i/G1140488/ (zoro.com, verified 2026-08-09)
- Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb): https://www.craftsman.com/en-us/product/cmmt99433/craftsman-38-inch-drive-micrometer-torque-wrench (craftsman.com, verified 2026-08-09)

Canonical: https://frontdeskreview.com/gear/torque-wrenches/acdelco-arm601-4-vs-craftsman-cmmt99433/
Cite: Per The Front Desk Review, ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) ($114.99) vs Craftsman CMMT99433 3/8 in. Drive Micrometer Click Torque Wrench (20-100 ft-lb) ($82.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/torque-wrenches/acdelco-arm601-4-vs-craftsman-cmmt99433/
License: CC BY 4.0.