STAR-M’s October 1, 2026 homepage notice announces additional sizes for its Impact Bit Short wood-drill range. The notice does not identify the newly added diameters individually, so this report does not treat every size in the current catalogue as a new release.

Match the bit to the machine and material

The product page identifies ordinary wood and shallow through-holes as the intended application. All sizes have a 6.35 mm hex shank. STAR-M specifies impact drivers and drill drivers rated at 14.4 V or above, with an appropriate rotation speed of no more than 3,000 rpm. These are the maker’s stated limits, not results from our own drilling tests.

Its FAQ warns that the screw-point design can split bamboo and directs users toward dedicated alternatives. A wood-drill listing therefore should not be read as approval for every plant material or every driver setting.

Hand finishing in the production account

STAR-M says its conventional spiral-type wood drills are sharpened individually by hand. The same company account describes checking for distortion after heat treatment. These are descriptions of its manufacturing practice, not independent measurements of this range’s cutting performance.

The current catalogue includes prices and dimensions, but the October notice does not confirm present stock or delivery. We have not tested the bits.

日本語要約

スターエム、インパクトビット ショートのサイズ追加を案内

スターエムは10月1日、インパクトビット ショートのサイズ追加を告知しました。一般木材の浅い貫通穴向けで、全サイズ6.35mm六角軸、適用機種は14.4V以上のインパクトドライバ・ドリルドライバ、適正回転数は毎分3,000回転以下としています。告知だけでは追加された径の内訳を特定できないため、掲載全サイズを今回の新製品とは数えていません。メーカーは先ネジ式で竹に穴をあけると割れると注意しています。会社の工程説明には、一般的なラセン式木工ドリルを一本ずつ手作業で刃付けするとありますが、当媒体による切れ味の試験ではありません。現在の注文受付・配送は未確認です。

Sources

Announcement date: 2026-10-01.

Official source 1
Official source 2
Official source 3

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