Selected subtotal: $7.46. Standard US shipping is $9.99 below $15, $7.99 from $15 to below $49, and free at $49 after discounts. Freight items excluded; other rates are shown at checkout.
IN STOCK
✓SAME-DAY DISPATCH — ELIGIBLE IN-STOCK ORDERS BY 2 PM ET
✓STANDARD US SHIPPING — $9.99 BELOW $15 · $7.99 FROM $15 · FREE AT $49 AFTER DISCOUNTS
✓LOCAL PICKUP — FALL RIVER
✓NET-30 & PO — APPROVED ACCOUNTS
18mm Snap-Off Blade Utility Knife with Screw Lock
Official Hyde specifications
Easy blade changing and a stainless steel blade holder for durability
Ratchet-wheel screw lock provides 44 pounds of holding force without blade retracting
8 points per blade
PRODUCT FIT · IS THIS THE RIGHT TOOL?Straight answers. If it's the wrong tool for your job, we'll say so.
The guidance below describes applications and limitations. For a match to your particular job or an existing tool, ask us to confirm fit.
Single-pass depth through thick board, membrane, or stacked underlayment — 18mm flexes at the extension that job needs; the 25mm 42051 with its 100-pound lock is the depth tool.
Fast one-handed setting where re-clamping each time is a nuisance — the slide-lock 42030 is quicker and carries onboard spare blades and a built-in breaker, which this knife's facts do not list.
Policy-documented cutting — no snap-off self-retracts.
Repetitive trade cuts in leather, rubber, or belting, where a ground blade outlasts endless snapped tips — the heritage square-points.
The ratchet wheel is the knife's identity — set the reach, turn until the blade is dead solid, and only back it off deliberately. A half-turned collar gives you neither the speed of a slide nor the security of a clamp. Short blade, hard clamp. Rigidity comes from the least blade extended and the tightest collar; save long extension for the 25mm depth knife. Renew at the drag. Snap a fresh segment the moment the cut fuzzes rather than parts — that is the point of a segmented blade. Spent segments are sharps. Each snapped tip is a two-edged razor; snap it away from the body into a sharps container. Snap at the scored groove so it shears clean rather than shattering.
Asked before buying
BUYER QUESTIONS, ANSWERED BEFORE YOU ORDER
What does the screw lock do that a slide doesn't?
It clamps the blade against retraction — 44 pounds of holding force, so a side-loaded deep cut cannot push the segment back into the handle. A slide lock is faster but can creep under that load.
How many edges per blade?
Eight; the 18mm blade carries eight snap-points, renewed by snapping.
Does it store spare blades or have a blade breaker?
Its documented facts list neither — those are the slide-lock 42030's features. Change blades by backing off the screw; snap spent segments at the scored groove into a sharps container.
Can I use it under a safety program?
No — it does not self-retract. Policy floors want the Switchblade knives.
Is the blade holder rust-prone?
No; it is stainless steel, so the clamp survives wet and dusty work.
