The Drill Beams are what FASA referred to as Romulans of Pre-TOS having. I assume they were used for both mining and combat.
Here, I will depict them in multiple game systems, but first, for LUG's ICON System.
Whereas Type F and up are Romulan Disruptors, Type A-E are normal Type Number x2 Beam Weapons, with varying ranges, and usually 5/6/8/11 Accuracy
Type A (2103)
Range: 2/5,000/15,000/50,000
Accuracy: 6/7/9/12
Damage: 2
Power: [2]
Type B (2105)
Range: 4/10,000/30,000/100,000
Accuracy: 6/7/9/12
Damage: 4
Power: [4]
Type C (2118)
Range: 6/15,000/45,000/150,000
Accuracy: 5/6/8/11
Damage: 6
Power: [6]
Type D (2130)
Range: 6/15,000/45,000/150,000
Accuracy: 5/6/8/11
Damage: 8
Power: [8]
Type E (2144)
Range: 8/25,000/75,000/200,000
Accuracy: 5/6/8/11
Damage: 10
Power: [10]