The Borka Tools PROTK Precision Rifle & Optics Tool Kit is a fully mechanical torque driver system designed for mounting optics, securing ring caps, and tightening rifle action screws to exact manufacturer tolerances. Built around the patented BTD10-70IP driver, the kit provides an adjustable torque range of 10 to 70 inch-pounds with a calibrated accuracy of ±4%. It features a standard 1/4" hex drive interface and comes equipped with a compact ratchet handle, a 1/2" hex socket, a 1/4" bit adapter, and a 17-piece assortment of S2 tool steel bits. The entire kit is housed in a protective blow-moulded hard case lined with custom laser-cut foam, measuring 8" L × 3.5" W × 1.5" D (203 mm × 89 mm × 38 mm) and weighing 1 lb 6 oz (624 g).

Key Features

• Adjustable Torque Range: Delivers controlled fastening between 10 and 70 in-lbs with ±4% accuracy to eliminate over- or under-tightening of scope rings, chassis bolts, and action screws.
• Comprehensive S2 Bit Assortment: Includes 17 tool steel bits covering Metric hex (2.5mm, 3mm, 4mm, 5mm), SAE hex (3/32", 7/64", 1/8", 9/64", 5/32", 3/16"), Torx (T10, T15, T20, T25), Slotted SL5, and Phillips P1.
• Fast Fastener Threading: Includes a dedicated 1/4" drive mini ratchet to run down fasteners quickly before applying final calibrated torque with the BTD driver.
• 100% Mechanical Operation: Operates entirely without batteries, digital displays, or fluid components, preventing cold and heat calibration drift in field environments.
• Field-Ready Storage: Packed in a protective hard case fitted with laser-cut carbon-fibre-style foam to secure components during transit in range bags and hunting packs.

Specifications

• Torque Range: 10 to 70 inch-pounds (in-lbs)
• Calibration Accuracy: ±4%
• Drive Interface: Standard 1/4" hex drive
• Bit Material: S2 tool steel (17-piece assortment)
• Dimensions (Case Closed): 8" L × 3.5" W × 1.5" D (203 mm × 89 mm × 38 mm)
• Total Weight: 1 lb 6 oz (624 g)
• Power Requirements: Manual / mechanical (none)

Who is the Borka Tools Tools Precision Rifle & Optics Tool Kit for?

• Precision Rifle Competition Shooters (PRS/NRL) — Need to maintain scope ring caps, rails, and action bolts between stages using a precision rifle torque tool kit that fits into a field pack at 1 lb 6 oz (624 g) while guaranteeing ±4% accuracy across a 10 to 70 in-lbs range.
• Hunters at Base Camps — Require a self-contained, unpowered precision rifle torque tool kit measuring 8" L × 3.5" W × 1.5" D that enables zero checks and optic remounting in remote environments without risk of hydraulic or electronic failure.
• Rifle Armorers and Gunsmiths — Service both European platforms (such as Tikka, Sako, and Lithgow) and US-spec chassis systems using a torque tool kit equipped with a 17-piece S2 tool steel bit assortment containing metric hex sizes down to 2.5mm and SAE hex sizes up to 3/16".

Less suitable for: Applications requiring ultra-low torque under 10 in-lbs (such as micro-reflex sight screws requiring 4 to 8 in-lbs), which require dedicated preset torque limiters, or heavy-duty assembly exceeding 70 in-lbs (such as barrel nuts or heavy muzzle devices), which require a standard 3/8-inch or 1/2-inch mechanical torque wrench.