# ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) vs Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 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 Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb) (Snap-on) among torque wrenches.

## Side by side

| Spec | ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) | Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb) |
| --- | --- | --- |
| US price | $114.99 | not published |
| Brand | ACDelco | Snap-on |
| Drive size (in) | 0.5 | 0.375 |
| Torque min ft (lb) | 14.8 | 5 |
| Torque max ft (lb) | 147.5 | 100 |
| Torque range (nm) | — | — |
| Accuracy | ±2% CW / ±3% CCW (20-100% of maximum torque) | ±2% CW / ±3% CCW (20-100% of scale) |
| Mechanism | digital/electronic | digital/electronic (flex-head) |
| Overall length (in) | — | — |
| Ratchet tooth count | — | 80 |
| Calibration certificate | Included — ISO 6789 standards compliance with certificate of calibration | Included — Snap-on TechWrench models ship with a certificate of calibration |
| 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 Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 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 Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb) 5
- Torque max ft (lb): ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) 147.5 vs Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb) 100
- Accuracy: ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) ±2% CW / ±3% CCW (20-100% of maximum torque) vs Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb) ±2% CW / ±3% CCW (20-100% of scale)
- Mechanism: ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) digital/electronic vs Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb) digital/electronic (flex-head)
- 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 Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb) Included — Snap-on TechWrench models ship with a certificate of calibration

## 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)
- Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb): https://snap-on.vn/product/3-8-drive-techwrench-flex-head-torque-wrench-5-100-ft-lb-tech2fr100/ (snap-on.vn, verified 2026-08-09)

Canonical: https://frontdeskreview.com/gear/torque-wrenches/acdelco-arm601-4-vs-snap-on-tech2fr100/
Cite: Per The Front Desk Review, ACDelco ARM601-4 1/2 in. Digital Torque Wrench (14.8-147.5 ft-lb) ($114.99) vs Snap-on TECH2FR100 3/8 in. Drive TechWrench Flex-Head Electronic Torque Wrench (5-100 ft-lb) (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/torque-wrenches/acdelco-arm601-4-vs-snap-on-tech2fr100/
License: CC BY 4.0.