Step Drills

Product Overview

Step Drills belongs to marine store group 63, Cutting Tools. High speed steel twist drill sets, step drills, valve seat cutters and single point tools for the ship's workshop, listed under IMPA group 63.

Key Benefits

• High speed steel twist drill sets with straight shank for the ship's workshop
• Step drills in heat treated steel that create various hole sizes in a single operation
• Complete valve seat cutter sets with spindle, handle, fixing bed, lock nut and adjusting screw
• Single point tools for square shank holders

Problems It Solves

• Drill sets that blunt on stainless and are then unusable
• Valve seat work sent ashore because no cutter set is carried
• Step drills that will not cut cleanly through plate and plastic
• Sets bought without knowing what sizes are inside

Who It Is For

• Chief and second engineers
• Fitters and workshop hands
• Ship chandlers supplying workshop stores
• Repair teams and riding squads

Application Scenarios

• Valve overhaul and seat refacing
• General workshop drilling
• Plate, stainless and plastic hole making
• Lathe and single point work

Technical Features

The technical detail for this line is published exactly as the manufacturer issued it, in the specification sheet below. We do not restate figures in our own words, so what you read here is what the maker states.

Materials

Material is stated per code on the specification sheet where the manufacturer publishes it. Where a choice exists in this group — for example brass against stainless, or wool against acrylic — both options carry their own code so you can order the one the duty needs.

Customization Options

Sizes, quantities, packing and marking are confirmed at order stage. Where a line exists in more than one size, rating or material, tell us the duty and we will point you at the right code rather than sending the nearest one.

How This Item Reaches You

• Your requisition line is matched to the catalogue code and any missing size, rating or material is queried before quoting
• The item is drawn from our supply base around Suzhou, a large mechanical manufacturing area in Jiangsu
• Quantity, size and marking are checked against the specification sheet before packing
• Packed and marked as part of one consignment with the rest of your store order
• The packing list carries the same codes as your requisition so receiving on board is a straight tick-off

Quality Control Before Shipment

• Code and quantity verified against the confirmed order
• Dimensions and ratings checked against the manufacturer specification sheet
• Visual check for transit damage, corrosion and packaging condition
• Photographs of the packed goods sent on request before dispatch

Documentation

The following can be issued with the shipment on request: commercial invoice, packing list, the manufacturer specification sheet for each line, and certificate of origin where the destination requires one. Where a manufacturer issues a certificate for a specific item — for example the EC certificate referenced on the chemical protection suit sheet — that certificate is supplied with the goods. We do not claim certification an item does not carry.

Comparison Within This Group

Group 63 carries 6 items. Where two lines look similar, the difference is usually material, size or rating rather than function. The quickest way to compare is to open the sibling products below and read the two specification sheets side by side, or send us both codes and we will tell you which suits the duty.

Use Guide

Confirm the size, rating or material against the vessel's existing fitting before ordering, note the catalogue code in the ship's inventory when the item is received, and reorder against that code. Doing this once turns every later reorder into a one line message.